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Reviewed on May 03, 2018 , Marc Henney, Yannick Khong

SENSO ActivBuds S-250
HEADPHONES REVIEW

Usage Ratings - Version 1.2

Test Benches: test

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2017
  • 0.9: Winter 2016
5.7
Mixed Usage
What it is This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
4.6
Critical Listening
What it is The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
6.2
Commute/Travel
What it is How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
7.6
Sports/Fitness
What it is How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
6.0
Office
What it is How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
4.9
Home Theater
Score components:
4.7
Gaming
Score components:
Type : In-ear
Enclosure : Closed-Back
Wireless : Yes
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The Senso Bluetooth headphones ActivBuds S-250 are good sports headphones but subpar for most other use cases due to their poor sound quality. They're stable and portable so you can have them on you at all times. They also have decent build quality for their price and come with a lot of accessories. Unfortunately, their poor sound will be a deal breaker for most even if you just need a cheap headset for working out.

Test Results
Design 7.6
Sound 3.9
Isolation 6.0
Microphone 5.9
Active Features 5.6
Connectivity 3.3
Pros
  • Stable for sports.
  • Easy-to-use controls.
  • Decent build quality.
Cons
  • Deal breaker sound quality.
  • Poor noise isolation.

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ActivBuds S-250
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7.6

Design

Score components:
SENSO ActivBuds S-250 Design Picture

The Senso ActivBuds S-250 have a sports-oriented design similar to the Soundpeats Q9A. They have decently well-made earbuds with hooks that prevent them from falling when exercising and they're portable enough so that you can have them on you at all times. They have a simple control scheme that provides good tactile feedback, and they come with a pair of memory foam tips for a more comfortable fit. Unfortunately, their build quality, though decent, doesn't feel as high-end as the similarly priced Anker SoundBuds Curve and they do not come with as many tip options so they won't be as comfortable.

Style
SENSO ActivBuds S-250 Design Picture 2

The Senso Bluetooth Headphones have a decent looking sporty aesthetic. They have thick and flexible ear-hooks similar to to the SoundPeats Q9A. The earbuds have a matte finish that doesn't quite look as premium as the Anker SoundBuds Curve, but the red highlights of the branding logo and multipurpose buttons make them a bit more recognizable at a distance. They also have flat audio cables which look than that of the Ankers. Unfortunately, they do not come in as many color schemes as some of the other sports-oriented headsets like the Jaybird X3, however, their understated look will work for most.

7.0 Comfort
What it is: Adjustability and degrees of freedom, pressure, stiffness and weight.
When it matters: When the headphones are going to be used for long durations.
Score components: Subjectively assigned
SENSO ActivBuds S-250 Comfort Picture
Weight : 0.05 lbs
Clamping Force
What it is: The force that the headphones exert on your head, once you have them on. This is purely a measurement of the force applied, which does not take into account the earpad's surface area and the resulting pressure you will feel, on or around your ears.
When it matters: The tighter the headphones, the more force they put on your head. This can get uncomfortable or cause pain and soreness during long listening sessions.
:
0 lbs

The Senso Bluetooth Headphones are decently comfortable wireless in-ears with an ear-hook design. The tips do not enter as deeply into the ear canal, which makes them a bit more comfortable than typical in-ears during long listening sessions. They also come with 4 silicone tips and a pair of memory foam tips to help you find the right fit. However, since they do not have as many tip options as the Anker SoundBuds Curve, they may not be as comfortable for everyone. Also if you're not a big fan of in-ear designs, then you may have some of the issues with these headphones.

7.2 Controls
What it is: The control scheme of the headphones, the number of functions provided, button layout and ergonomics as well as the quality of tactile feedback.
When it matters: If you want to control volume, pause your music or make phone calls without directly interacting with your audio device.
SENSO ActivBuds S-250 Controls Picture
Ease of use : Average
Feedback : Good
Call/Music Control : Yes
Volume Control : Yes
Microphone Control : No
Channel Mixing
What it is: Being able to mix audio channels directly on the headphones.
When it matters: This is most useful when using a separate chat software so that you can mix in-game audio and chat audio depending on your needs.
:
N/A
Noise Canceling Control : N/A
Talk-Through : N/A
Additional Buttons : N/A

The Senso ActivBuds S-250 have a fairly simple control scheme with good feedback. They have a multi-purpose button on the right earbud to play and pause your audio as well as answer and end calls. It also doubles as the Bluetooth pairing button when switching on the headphones. On the top side of the right earbud, they provide a volume rocker that also skips and rewind tracks, when you press and hold either the volume up or down buttons respectively.

9.0 Breathability
What it is: How hot the headphones get when you wear them for an extended period of time.
When it matters: If you often have long listening sessions or use your headphones while doing physical activities like running or working out.
Score components:
SENSO ActivBuds S-250 Breathability After Picture
Avg.Temp.Difference : 1 C

These headphones, like most in-ears, are very breathable and won't make you sweat more than average even during more intense workout routines. They do not cover the outer ear, which remains relatively cool when running or exercising. Their ear-hook design does cover a bit more surface area than typical in-ears but it's a very negligible difference that won't raise the overall temperature of your ear by much.

9.1 Portability
What it is: The volume of space occupied by the headphones when folded into their most compact format.
When it matters: If you're often on the move and need to carry your headphones in a bag, purse , or pocket.
Score components:
SENSO ActivBuds S-250 Portability Picture
L : 1.7 "
W : 1.8 "
H : 1.2 "
Volume : 3.7 Cu. Inches
Stand required : N/A

The Senso ActivBuds S-250 are portable and easy-to-carry around on your person. Their ear hook design makes them a bit less compact than typical in-ears but they're still fairly small, and you can fold them to easily fit into your pockets. They also come with a decent carrying case.

7.5 Case
What it is: The provided carrying options to protect your headphones when transporting them.
When it matters: To prevent damaging your headphones, if you often carry them in your bag or pocket.
Score components: Subjectively assigned
SENSO ActivBuds S-250 Case Picture
Type : Hard case
L : 3.1 "
W : 3.1 "
H : 1.4 "
Volume : 13.5 Cu. Inches

The Senso Bluetooth Headphones come with a decent hard case that will protect them from minor impacts, scratches, and falls. However, the case shell is not as hard as some of the other hard cases we've tested but on the upside, it's compact and can fit into a pocket.

7.0 Build Quality
What it is: Durability, material quality, cheap/expensive feel.
When it matters: When the headphones are going to be used by multiple users (classes/studios), by children, in tough conditions, on a daily basis, or for exercise.
Score components: Subjectively assigned
SENSO ActivBuds S-250 Build Quality Picture

These headphones have a decent build quality but feel a bit cheaply made when compared to the Anker Soundbuds curve. The earbuds and ear-hooks are fairly dense and relatively sturdy, and they have flat cables that are less tangle-prone than the Ankers. However, the build quality of the earbuds feels a bit cheaper and closer to the Soundpeats Q9A than to the Curve.

8.0 Stability
What it is: How the headphones are designed to prevent them from slipping off your ears or falling off your head.
When it matters: If you plan on using the headphones while doing sports or other physical activities that requires a lot of movement.
Score components: Subjectively assigned
SENSO ActivBuds S-250 Stability Picture

The Senso Bluetooth Headphones have a stable ear-hook design that's suitable for sports. They won't easily fall off your ears thanks to the hooks. However, the tips do tend to slide out a little when running or doing more intense workouts so you may have to push them back in occasionally. On the upside, they come with a pair of memory foam tips that fit better within the ear canal, which may reduce that issue.

Cable
SENSO ActivBuds S-250 Cable Picture
Detachable : No
Length : N/A
Connection : N/A

These headphones come with only one micro-USB charging cable.

Top
Headshots 1
Headshots 2
3.9

Sound

What it is: How accurately the audio is reproduced. The tests are performed with the headphones' most commonly used features enabled (noise-cancelling, wireless, etc.)
SENSO ActivBuds S-250 Frequency Response

The Senso ActivBuds S-250 are a poor sounding pair of closed-back in-ear headphones. Their bass is deep and powerful, but overly heavy and boomy. Their mid-range is excessively muddy and cluttered, especially on vocals, and their treble lacks quite a bit of brightness and detail. Additionally, their imaging and distortion performance is about average, and like most other in-ears, they don't have a large and speaker-like soundstage.

4.7 Bass
What it is: Frequency Response from 20Hz-250Hz
When it matters: When the material is heavy on bass frequencies, such as those of kick drums and bass guitar.
Score components:
SENSO ActivBuds S-250 Bass
Std. Err.
What it is: The amount of deviation (weighted standard error) in bass frequency response (20Hz-250Hz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) bass performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
7.81 dB
Low-Frequency Extension
What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Shows how extended the bass is.
Good value: <40Hz
Noticeable difference: 5Hz
:
16.58 Hz
Low-Bass
What it is: The average amount of over/under-emphasis in frequency response from 20Hz-60Hz.
When it matters: Kick drums and low frequency effects get their 'thump' from this range. Mostly felt than heard.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
1.43 dB
Mid-Bass
What it is: The average amount of over/under-emphasis in frequency response from 60Hz-120Hz.
When it matters: Melodic bass instruments have most of their fundamental frequencies in this range. This is where the 'body' and 'punch' of the bass sits.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
6.16 dB
High-Bass
What it is: The average amount of over/under-emphasis in frequency response from 120Hz-250Hz.
When it matters: Most instruments get their warmth and full-ness from this range. When over-emphasized, mixes tend to get muddy and boomy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
12.92 dB

The Senso Bluetooth headphone has a sub-par bass. LFE (low-frequency extension) is at 17Hz, which is very well-extended. Also, low-bass, responsible for thump and rumble, is within 2dB of our neutral target, which is great. However, mid-bass and high-bass are overemphasized by 6dB and 13dB respectively, which is quite poor. This makes the overall sound excessively bass-heavy and boomy.

3.5 Mid
What it is: Frequency Response from 250Hz-2KHz
When it matters: When the material is heavy on mid-range frequencies. This is the case for the majority of audio content.
Score components:
SENSO ActivBuds S-250 Mid
Std. Err.
What it is: The amount of deviation (weighted standard error) in mid frequency response (250Hz-2.5KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) mid performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
8.68 dB
Low-Mid
What it is: The average amount of over/under-emphasis in frequency response from 250Hz-500Hz.
When it matters: Most instruments have their fundamentals or low harmonics in this range. Over-emphasis in this range sounds muddy and cluttered. Under-emphasis, thins out the vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
12.92 dB
Mid-Mid
What it is: The average amount of over/under-emphasis in frequency response from 500Hz-1KHz.
When it matters: This range is occupied mostly by upper harmonics. Over-emphasis sounds forward and boxy. Under-emphasis pushes instruments to the back of the mix.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
3.94 dB
High-Mid
What it is: The average amount of over/under-emphasis in frequency response from 1KHz-2KHz.
When it matters: Most instruments, especially vocals, get their intensity and clarity from this range. Over-emphasis sounds honky and harsh, under-emphasis sounds weak and distant.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-4.86 dB

The mid-range is poor sounding. The overall response is even and consistent, but with a 15dB tilt favoring low-mid. This makes vocals quite thick and unclear, and the overall mix muddy and cluttered sounding.

2.2 Treble
What it is: Frequency Response from 2KHz-20KHz
When it matters: When the material is heavy on high-range frequencies, such as voice, cymbals, and any other material where brightness, brilliance and airiness is desired.
Score components:
SENSO ActivBuds S-250 Treble
Std. Err.
What it is: The amount of deviation (weighted standard error) in treble frequency response (2.5KHz-20KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) treble performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
9.54 dB
Low-Treble
What it is: The average amount of over/under-emphasis in frequency response from 2KHz-5KHz.
When it matters: Almost all instruments rely on this range for their presence, detail, and articulation. Over-emphasis can sound harsh and painful. Under-emphasis hurts the comprehensibility of vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-7.93 dB
Mid-Treble
What it is: The average amount of over/under emphasis in frequency response from 5KHz-10KHz.
When it matters: This is the sibilance range. Cymbals, vocals, and lead instruments rely on this range for brightness and presence. Over-emphasis sounds piercing and painful, under-emphasis sounds dull and lispy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-11.29 dB
High-Treble
What it is: The average amount of over/under-emphasis in frequency response from 10KHz-20KHz.
When it matters: This range gives brilliance and airiness to the sound. Over-emphasis sounds hissy, under-emphasis sounds closed-up and lifeless.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-12.05 dB

The treble of the Senso Bluetooth headphones is terrible. The response throughout the range is relatively even and flat, but consistently under out neutral target by about 10dB. This makes the treble of the ActiveBuds S-250 quite dark and lacking in detail and presence, especially when considering their heavy bass and mid ranges.

Raw Frequency Response
What it is: The average uncompensated frequency response of the headphone. For in-ears and earbuds, this corresponds to the average of 5 measurements/re-seats on the dummy head (HMS). For over/on-ear headphones, this corresponds to the average of 5 measurements/re-seats on the HMS (Head Measurement System) for the mid and treble ranges, and 5 measurements/re-seats on 5 human subjects for the bass range.
When it matters: This is for those who want to see the raw and uncompensated frequency response of the headphone. Some of the more advanced users, are able to read and evaluate headphone frequency response in its raw form and without compensation. This will be especially useful to them if they have their own headphone compensation/target curve, which may differ from the compensation curve/target response used by RTINGS.com.
Score components:
9.0 Frequency Response Consistency
What it is: The amount of deviation of each frequency response pass, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Score components:
SENSO ActivBuds S-250 Consistency L SENSO ActivBuds S-250 Consistency R
Avg. Std. Deviation
What it is: The average amount of deviation in frequency response of 5 re-seats, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Good value: <0.5
Noticeable difference: 0.1
:
0.2 dB

The Senso Bluetooth Headphones have excellent frequency response consistency. If the user is able to achieve a proper fit and an air-tight seal using the assortment of tips that come with the headphones, they should be able to get consistent bass and treble delivery every time they use the headphones. But, if the user fails to achieved a proper and air-tight seal, they could experience a drop in bass.

6.6 Imaging
What it is: Imaging qualities are inherent to the audio content, the headphones have to 'reproduce' them rather than 'create' them. They determine how accurately the objects are positioned in the stereo image, and how transparent the imaging is.
When it matters: When accurate positioning of the objects in the stereo image, and clear and transparent imaging is desired.
SENSO ActivBuds S-250 Group Delay SENSO ActivBuds S-250 Phase Response
Weighted Group Delay
What it is: The average amount of group delay calculated based on a perceptual weighting filter. Group delay indicates how long it takes for each frequency to reach their maximum amplitude. This is a monaural quality and can be perceived even with one ear.
When it matters: Headphones with lower group delay have more transparent imaging and a tighter bass. Headphones with higher group delay in the bass range tend to have a wimpy and loose bass, and headphones with higher group delay in the treble range tend to have a less transparent imaging.
Good value: <0.5
Noticeable difference: 0.1
:
0.21
Weighted Amplitude Mismatch
What it is: The Left/Right balance of our test unit, that is, the amount of amplitude difference between the left and right drivers. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When a properly balanced stereo image and low manufacturing tolerance is desired. A poor score indicates a noticeable difference in level between the left and right drivers.
Good value: <1.5
Noticeable difference: 0.1
:
2.34
Weighted Frequency Mismatch
What it is: The amount of difference (Std. Err.) between the frequency response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance, is desired. A poor score indicates there may be 'holes' in the stereo image at certain frequencies.
Good value: <2
Noticeable difference: 0.1
:
1.24
Weighted Phase Mismatch
What it is: The amount of difference (Std. Err.) between the phase response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance is desired. A poor score indicates there may be inaccuracies in the stereo image reproduction at certain frequencies.
Good value: <16
Noticeable difference: 3
:
34.28

The imaging performance is average. The weighted group delay is at 0.21, which is quite good. The GD graph also shows that the group delay response never crosses the audibility threshold, suggesting a tight bass and a transparent treble reproduction. Additionally, the L/R drivers of our test unit were well-matched in amplitude and frequency response. However, we measured a big mismatch in the phase response, which could skew the stereo image and create holes in it.

1.7 Soundstage
What it is: Soundstage qualities are not inherent to the audio content, the headphones have to 'create' them rather than 'reproduce' them. They determine whether the sound is perceived to be coming from inside or in front of the head, how open and spacious the soundstage is, how much the headphones acoustically interact with the environment, and how strong the phantom center is.
When it matters: When an accurately produced, large and spacious soundstage, similar to that of a stereo loudspeaker setup is desired.
PRTF Accuracy (Std. Dev.)
What it is: The standard deviation of the PRTF (Pinna-related transfer function) of the headphones compared to a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: An accurate pinna activation is mainly responsible for how natural and speaker-like the soundstage is perceived to be. The less error in the shape of the PRTF, the more natrual and speaker-like the perception of the soundstage will be. High amounts of error may indicate a soundstage that is unnatural or odd.
Good value: <2.5
Noticeable difference: 0.1
:
N/A
PRTF Size (Avg.)
What it is: The average amplitude of the PRTF (Pinna-related transfer function) of the headphones compared to that of a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is responsible for the perceived size of the soundstage. The higher the value, the larger the perceived size of the soundstage. However, values above the reference (5.0dB) could result in a soundstage that is perceived as unnatural or odd.
Good value: >3.7
Noticeable difference: 0.1
:
N/A
PRTF Distance
What it is: The depth of the "10KHz notch" of the headphone's PRTF, which is caused by phase cancellations at the concha. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is mainly responsible for the perceived distance and elevation of the soundstage. A small distance value may result in a soundstage that is perceived to be located inside the head. Larger values may help pull the soundstage out from inside of the head and bring it to the front.
Good value: >13
Noticeable difference: 1
:
N/A
Openness
What it is: How open the headphones are, and how open and spacious they sound. This quality is monaural and can be perceived even with one ear. This test differentiates between acoustically and electronically produced crosstalk and only takes the acoustically generated crosstalk into account. This value is the inverse of the Noise Isolation test score, and could be indirectly related the acoustic impedance of the headphones.
When it matters: When a headphone with a sense of an open, and spacious soundstage is desired. A value of 10 indicates a fully open headphone, and a value of 0 indicates a fully closed headphone.
Good value: >7.5
Noticeable difference: 0.5
:
5.5
Acoustic Space Excitation
What it is: How loud the headphones are, and how much they excite their environment acoustically. If the headphones are loud and open enough, the sound leaking from the headphones will be affected by the environment (reflections/reverb) before reflecting back into the open headphones and to the listener's ears. This quality is monaural and can be perceived even with one ear. This value is the inverse of the Leakage test score.
When it matters: Headphones with higher excitation values, similar to openness, tend to have soundstages that are perceived as more open and spacious.
Good value: >7.5
Noticeable difference: 0.5
:
1.1
Correlated Crosstalk
What it is: How strong and solid the phantom center is. This is mostly a stereo quality and its effects on mono content are minimal. This test is sensitive to the phase of the crosstalk and whether it is produced acoustically or electronically.
When it matters: When a true reproduction of the stereo image is desired. A value of 0 indicates no crosstalk, or that the existing crosstalk is not correlated enough to affect the phantom center. A negative score means the crosstalk is out of phase with the original signal, resulting in a slightly wider stereo image at the expense of creating a 'hole' at the center of the stereo field. A positive score means the crosstalk is in phase and positively affecting the phantom center.
Good value: >1dB
Noticeable difference: 0.3dB
:
0.0 dB

Like most other in-ears, the soundstage of the Senso Bluetooth Headphones is poor. This is because in-ears bypass the pinna (outer ear) and don't interact with it, while activating the resonances of the pinna is one of the key factors in creating a speaker-like and out-of-head soundstage.

6.7 Total Harmonic Distortion
What it is: The subtle, unwanted frequencies (harmonics) produced alongside the intended frequencies.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Score components:
SENSO ActivBuds S-250 Distortion
Weighted THD @ 90
What it is: The overall amount of harmonic distortion measured at 90dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: <0.100
Noticeable difference: 0.1
:
22.129
Weighted THD @ 100
What it is: The overall amount of harmonic distortion measured at 100dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at loud listening levels.
Good value: <0.300
Noticeable difference: 0.1
:
2.297

The harmonic distortion of the ActivBuds S-250 is about average. The overall amount of THD is elevated, especially in the mid and treble ranges. This could make the sound of those frequencies a bit of harsh and brittle which will mostly affect vocals and cymbals.

6.0

Isolation

Score components:

The Senso ActivBuds S-250 are not active noise-canceling headphones and only block noise passively with the quality of the seal they create with their in-ear fit. Unfortunately, unlike some of the other in-ears we've tested, they do not create the best seal within your ear so they won't be ideal for the loud environments involved in commuting. On the upside, since they barely leak, you can mask some of the ambient noise in your surroundings by playing your music at higher volumes without distracting those around you.

4.5 Noise Isolation
What it is: How much outside noise is blocked out by putting the headphones on.
When it matters: If the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
Score components:
SENSO ActivBuds S-250 Noise Isolation
Overall Attenuation
What it is: The overall amount of environmental noise reduction in dB.
When it matters: In loud envinronments like planes, trains, offices, etc.
Good value: <-20dB
Noticeable difference: 1dB
:
-11.34 dB
Bass
What it is: The overall amount of noise isolation in the bass range (20Hz-250Hz).
When it matters: When the outside noise is bass-heavy, like in airplanes.
Good value: <-15dB
Noticeable difference: 1dB
:
-0.9 dB
Mid
What it is: The overall amount of noise isolation in the mid-range (250Hz-2.5KHz).
When it matters: When the environment's noise is mid-heavy, like in an office.
Good value: <-15dB
Noticeable difference: 1dB
:
-8.15 dB
Treble
What it is: The overall amount of noise isolation in the treble range (2.5KHz-20KHz).
When it matters: When the environment's noise is treble-heavy. Although uncommon, areas with sharp sounds fall under this category.
Good value: <-30dB
Noticeable difference: 1dB
:
-25.53 dB
Self-Noise
What it is: The amount of noise created by the active electronics of the headphones (if applicable), measured from 300Hz-20KHz. Applies mostly to wireless and noise-cancelling headphones.
When it matters: If too loud, it could become distracting when listening to quiet material like podcasts and audiobooks.
Good value: <16dB
Noticeable difference: 1dB
:
21.37 dB

The isolation performance of the Senso Bluetooth Headphones is sub-par. In the bass range, where the rumble of airplane and bus engines sit, they don't achieve any isolation. In the mid-range, important for blocking out speech, they isolate by about 8dB, which is about average. In the treble range, occupied by sharp sounds like S and Ts, they isolate by about 21dB of reduction.

9.0 Leakage
What it is: The amount of sound bleeding out of the headphones.
When it matters: When the listener doesn't want people around them (in office, recording studio, etc.) to hear what is being listened to.
Score components:
SENSO ActivBuds S-250 Leakage
Overall Leakage @ 1ft
What it is: The amount of sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal.
When it matters: When you don't want people hear what you are listening to.
Good value: <35dB
Noticeable difference: 1dB
:
27.57 dB

The leakage performance is excellent. The significant portion of their leakage is spread over a very narrow range in the treble range, around 2KHz and 6KHz. This makes their leakage very thin and sharp sounding. The overall level of their leakage is also very low. With the music at 100dB SPL, the leakage averages around 28dB SPL, and peaks at around 40db SPL, which is way below the noise floor of the average office.

5.9

Microphone

What it is: The microphone section shows the quality of speech capture and transmission by the mic, as well as how well the microphone under test handles noisy environments.
When it matters: For your speech to be transmitted to and understood properly by the listener, the microphone needs to have a good recording quality. If the environment the microphone is being used in is noisy, a microphone with a good noise handling performance would be needed as well.
Score components:
Integrated
What it is: The microphone integrated in the ear cup or ear bud of a wireless headphone.
When it matters: For calls, gaming and voice over IP software or for any other use of the microphone.
Good value: Yes
:
Yes
In-line
What it is: The microphone inside the in-line remote of audio cables for wired and wireless headsets.
When it matters: In-line microphone are usually better than integrated mics. If you need better recording quality and noise handling for calls, gaming and voice over IP software then use the audio cable of your wired or wireless headphone if it has an inline microphone.
Good value: Yes
:
No
Boom
What it is: A typically better microphone, that's also adjustable and extends so that the mic is closer to your mouth.
When it matters: Much better recording quality and noise handling than in-line or integrated mics. Primarily used for gaming and voice over IP software.
Good value: Yes
:
No
Detachable Boom
What it is: A boom mic that is detachable from the headset.
When it matters: If you want to use your headphone outdoors without the bulk and hassle of the Boom mic.
:
N/A

The integrated microphone of Senso Bluetooth Headphones is sub-par. In quiet environments, speech recorded or transmitted with this mic will sound a bit thin, but it'll also be prone to pops and rumbling noises. It will also sound quite muffled and lacking in detail, which could make it a bit difficult to understand. In noisy situations, they will struggle to separate speech from background noise even in moderately loud places, like a busy street.

5.7 Recording Quality
What it is: Microphone recording quality shows how natural, neutral, extended and intelligible speech would be with the device under test, in a quiet environment.
When it matters: A microphone with a good recording quality ensures that the person listening to you would hear a full, clear, and easily understandable speech. Therefore, it is important whenever a good quality of speech transmission and intelligibility is needed.
Score components:
SENSO ActivBuds S-250 Microphone Frequency Response
Recorded Speech
What it is: Actual audio recording of the headphone's microphone, recorded while placed on the dummy head, with speech being played back through the dummy head's mouth simulator.
When it matters: When a clean, full, and intelligible speech transmission is required.
:
LFE
What it is: Low-frequency extension shows how deep the bass response of the microphone is, and therefore, how deep and full your voice would sound to the listener. It is the lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: LFE is not a big factor in speech intelligibility and even speech recorded with a mic that has an LFE of 500Hz could still be easily understood. Therefore, it is mostly important if you are concerned with how deep and full your voice would be heard.
Good value: <150Hz
Noticeable difference: 30Hz
:
20 Hz
FR Std. Dev.
What it is: Frequency Response Standard Deviation shows how accurately and balanced sound is captured by the microphone at each frequency. FR Std. Dev. is calculated between LFE and HFE, and the rest of the spectrum is ignored.
When it matters: A good frequency response is desired when a natural and neutral speech quality is desired. As opposed to HFE which is more a metric for speech intelligibility, frequency response could be considered as a metric for a natural and neutral sound.
Good value: >3.5dB
Noticeable difference: 0.5dB
:
5.89 dB
HFE
What it is: High-frequency extension is the highest frequency at which the frequency response reaches -3dB of the target response. It shows how extended the treble response of the microphone is.
When it matters: HFE is one the most important factors in speech intelligibility. The higher the HFE, the brighter, more open, and more extended the speech quality will be which makes it a lot easier to understand by the listener.
Good value: >8KHz
Noticeable difference: 1KHz
:
1612.7 Hz
Weighted THD
What it is: The unwanted frequencies (harmonics) produced alongside the intended frequencies, which cause deformation of an output signal compared to its input.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Good value: <1.5
Noticeable difference: 1.0
:
2.445
Gain
What it is: Shows how much louder the microphone can go above our reference loudness level. The gain value is reported relative to our reference level, which is 94dB at a distance of 5cm from the mouth.
When it matters: A microphone with a high gain is important when the input signal (speech) is very quiet. For example when whispering, or talking on the phone in a library.
Good value: >18dB
Noticeable difference: 3dB
:
32.22 dB

The microphone of the Senso Bluetooth Headphones has a sub-par recording quality. LFE (low-frequency extension) is at 20Hz, which is good, but the bump in mid-bass can make this mic prone to pops and rumbling noises. The dip around 200Hz makes speech recorded/transmitted with this mic a tad thin sounding. The HFE (high-frequency extension) of 1.6KHz is sub-par, making speech noticeably muffled and lacking in detail. This will negatively affect the intelligibility of speech.

6.0 Noise Handling
What it is: How well the microphone is able to separate speech from background noise, so that the transmission would include more voice and less noise.
When it matters: When a clean and intelligible speech transmission is desired in a noisy situation like talking on the phone on a busy street or on the bus.
Score components:
SENSO ActivBuds S-250 SpNR
Speech + Pink Noise :
Speech + Subway Noise :
SpNR
What it is: Speech to Noise Ratio is the difference in level between speech and background noise as heard by the listener
When it matters: If the microphone is going to be used in a noisy environment, it is important for it to be able to separate the speech from background noise, so the voice would be easily audible and understandable.
Good value: >24dB
Noticeable difference: 3dB
:
12.19 dB

The microphone is mediocre at noise handling. In our SpNR test, this mic achieved a speech-to-noise ratio of 12dB, indicating it is best suited for quiet environments, and they will struggle to separate speech from ambient noise in moderate or loud situations.

5.6

Active Features

What it is: Headphones with active components that require a battery. This includes noise cancelling and wireless headphones that actively reduce noise or transmit audio via a wireless connection.
When it matters: How suitable the power and wireless specifications of an active headphone will be, depending on your listening habits. The range and/or discharge time of the active headphone you select will be important if you're often on the move or have long uninterrupted listening sessions.
Score components:

The Senso ActivBuds S-250 have a decently long battery life of 8.3 hours but poor power saving features and no app support for customization. They last you throughout the day at of moderate-to-heavy use, but the lack of an auto-off features means the battery will continue to drain even when you're not listening to anything. On the upside, they don't take too long to charge at1.5 hours, but the lack of an app makes them less customizable than some of the other wireless in-ears we've tested like the Jaybird Freedom.

6.2 Battery
What it is: The power source of your headphones. All headphones with active features have a battery that will deplete over time.
When it matters: To continue using the active features of your headphones. Some models lose features or switch off completely when the battery is drained, which limits what you can do with them until the next charge.
Battery Type
What it is: The type of battery that the headphones use. Usually AAA or embedded, Li-ion rechargeable batteries.
When it matters: When your headphones run out of power. Rechargeable batteries usually charge via the headphones Micro-USB port whereas AAA batteries have to be replaced or charged with an external device.
:
Rechargable
Battery Life
What it is: The amount of time it takes for a headphones' battery to be completely drained. Battery life will vary depending on the active features used and volume level.
When it matters: For active headphones that connect wirelessly, have noise cancellation or other audio-enhancing features, that cease to work once the battery is dead.
Good value: >10hrs
Noticeable difference: 0.5hrs
:
8.3 hrs
Charge Time
What it is: The amount of time your active headphones have to be connected to a power source to charge from 0 to a 100%. However, charging time will vary depending on your power source.
When it matters: To be able to use the active features of your headphones. Especially, wireless ones that completely switch off and need to be recharged when the battery is dead.
Good value: 2h or less
Noticeable difference: 0.25h
:
1.5 hrs
Power Saving Feature
What it is: A feature that turns off the headphones, after a set time, when they're not in use.
When it matters: To prolong battery life when the headphones are not being used, or if you forget to manually turn off your headphones.
:
No
Audio while charging
What it is: Some active headphones remain usable while charging. They continue to stream audio and do not disable other active features.
When it matters: This makes sure that your headphones's battery are not being drained when your relatively close to a power source. However, this means wireless headphones will need a wired connection to the power source during the charging process.
:
No
Passive Playback
What it is: Active headphones that still work when all their active features are turned off or out of power.
When it matters: If you run out of power and do not have spare AA/AAA batteries or access to a power source to recharge your headphones.
:
No

The Senso Bluetooth headphones have above-average battery life for a wireless in-ear and do not take too long to charge. This makes them a decent option for casual and heavy users, but the lack of power saving features means they will stay paired to your device until the battery runs out or they are out of range. If you forget to switch them off, the battery will continue to drain which is not ideal.

0 App Support
What it is: The additional app provided to enhance your listening experience. They typically deliver a set of practical features that give you more control over the sound, noise cancelling and effects that the headphones produce.
When it matters: An app with a lot of features allows you to customize your listening experience to suit your taste and preferences. For example, additions like an equalizer can give you more bass or treble and room effects can simulate a bigger Soundstage in closed back headphones.
Score components: Subjectively assigned
App Name : N/A
iOS : N/A
Android : N/A
Mac OS : N/A
Windows : N/A
Equalizer
What it is: Parametric, graphic or preset sound profiles that slightly alter the frequency response.
When it matters: If you want to tailor, your listening experience. Depending on what you're listening to you may want more or less bass for some tracks or more mid-range for vocals-heavy audio.
:
N/A
ANC control
What it is: Control over the Active noise canceling technology. This could be either a simple on/off button, and adjustable slider or even adaptive self-regulating noise cancellation.
When it matters: If you're in an environment where you need to monitor your surroundings or completely isolate yourself from ambient noise.
:
N/A
Mic Control : N/A
Room effects
What it is: Room effects that enhance the audio quality to make it more immersive.
When it matters: If you want to further tweak your listening experience. Adding room effects, can simulate a more spacious Soundstage or deliver a surround sound-like feel.
:
N/A
Playback control
What it is: An in-app player that gives you access to play/stop, track skipping or volume controls directly with the app.
When it matters: It's a shortcut that allows you to control your audio without leaving the application.
:
N/A
Button Mapping : N/A
Surround Sound : N/A

These headphones do not come with a compatible app for added customization options.

3.3

Connectivity

What it is: The inputs and outputs of wired and wireless headphones, as well as their latency performance and range.
When it matters: To know how compatible your Bluetooth device, console or PC will be with your wired or wireless headset.
Score components:
  • 10% Bluetooth
  • 33% Wired
  • 10% Base/Dock
  • 22% Wireless Range
  • 25% Latency

The Senso ActivBuds S-250 are simple Bluetooth-only headphones with no audio cable or base/dock. They do not support simultaneous multi-device pairing or NFC.  On the upside, they have a good wireless range, but like most Bluetooth headsets they have a bit too much latency to be suitable for watching movies or playing video games.

6.0 Bluetooth
What it is: Bluetooth support for wireless headphones.
When it matters: To connect wirelessly to Bluetooth sources like your phone, tablet, console, PC and TV.
Score components:
  • 80% Multi-Device Pairing
  • 20% NFC
  • <1% PS4 Compatible
  • <1% Xbox One Compatible
Bluetooth Version : 4.1+EDR
Multi-Device Pairing
What it is: A Bluetooth profile that allows some headphones to be simultaneously connected to multiple Bluetooth sources, and have full call and media support on both/all devices they are connected to.
When it matters: To quickly switch between your Bluetooth sources. For example, switching from your phone to your home or work PC and still have call and media support on both devices.
Good value: 2 devices.
:
No
NFC
What it is: Near Field Communication technology that allows you to quickly, pair your headphones with your Bluetooth and NFC-enabled device.
When it matters: This makes pairing with an NFC-enabled device a lot easier than the typical and often tedious hold-to-pair procedure that most wireless headphones have.
Good value: Yes
:
No
PS4 Compatible
What it is: Bluetooth compatibility with the PlayStation 4.
When it matters: To connect your headphones wirelessly with your PS4.
Good value: Audio + Microphone
:
No
Xbox One Compatible
What it is: Bluetooth compatibility with the Xbox One.
When it matters: To connect your headphones wirelessly with your Xbox one.
Good value: Audio + Microphone
:
No

The Senso Bluetooth headphones do not have multi-device pairing or NFC support. On the upside, their hold-to-pair procedure is not difficult to use and they automatically pair to the last synced device. Unfortunately, this auto pairing procedure can be a bit too aggressive which prevents the headphones from entering the pairing state so that you can connect them to another Bluetooth device.

0 Wired
What it is: The type and compatibility of audio cables for wired and wireless headphones.
When it matters: For all devices with a regular audio jack (line-out) and also compatibility of the in-line remote/boom microphone with consoles and Personal computers.
Score components:
  • 13% Analog
  • 9% USB
  • 26% PS4 Compatible
  • 26% Xbox One Compatible
  • 26% PC Compatible
Cable Tested : N/A
Analog
What it is: A regular 1/8" TRS audio jack or a 1/4 or 1/16 TRS with a 1/8 TRS adapter.
When it matters: For all devices with a line out.
Good value: Yes
:
N/A
USB
What it is: A USB or USB adapter to connect to your devices for audio and microphone.
When it matters: A digital USB adapter usually offers a slight advantages over a regular audio jack, like a DAC, and amplifier module or software support and compatibility with PCs. However it may not be as compatible with consoles.
Good value: Yes
:
N/A
PS4 Compatible
What it is: PS4 compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PS4
Good value: Audio + Microphone
:
N/A
Xbox One Compatible
What it is: Xbox One compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your Xbox One
Good value: Audio + Microphone
:
N/A
PC Compatible
What it is: PC compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PC.
Good value: Audio + Microphone
:
N/A

The Senso ActivBuds S-250 have no wired option. If you want a decent sounding, wired design with a universal in-line remote, then check out the 1More Triple Driver In-Ear.

0 Base/Dock
What it is: The base station, dock or dongle transmitter of wireless headphones that receive data/audio via a proprietary frequency range.
When it matters: Knowing the inputs and outputs of the base/dock/dongle as well as its compatibility with consoles and Personal Computers. Also whether the base supports dock charging to easily recharge the headphones without any cables.
Score components:
  • 5% Optical Input
  • 22% Line In
  • 5% Line Out
  • 22% USB Input
  • 4% RCA Input
  • 9% PS4 Compatible
  • 9% Xbox One Compatible
  • 9% PC Compatible
  • 2% Power Supply
  • 13% Dock Charging
Wireless Type
What it is: The type of wireless connection used by the base station/dock to communicate with the headphones.
When it matters: For latency and range. For example Radio frequency has low latency but mediocre range when obstructed and proprietary docks have their own 2.x GHz or 5 GHz frequency which varies in performance.
:
N/A
Optical Input
What it is: Optical input for audio.
When it matters: Optical can carry a bit more data at faster speeds than typical wired connection which allows for more high quality, lossless audio.
Good value: Yes
:
N/A
Line In
What it is: The regular wired input via a 1/8" TRS audio jack.
When it matters: For any device that has a line out for audio transmission.
Good value: Yes
:
N/A
Line Out
What it is: A regular 1/8TRS audio jack output.
When it matters: If you need to share the audio source with other devices. A line out lets you connect other headphones or speakers to the dock/base station.
Good value: Yes
:
N/A
USB Input
What it is: A digital USB input instead of a typical 1/8 TRS line-in.
When it matters: A USB connection can provide both an audio input and power to the Dock or Base station.
:
N/A
RCA Input
What it is: Audio input using via an RCA connectors.
When it matters: Provides better stereo audio to the dock/base that's then transmitted to the headphones.
Good value: Yes
:
N/A
PS4 Compatible
What it is: Dock/Base station compatibility with the PlayStation 4.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Xbox One Compatible
What it is: Dock/Base station compatibility with the Xbox One.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
:
N/A
PC Compatible
What it is: Dock/Base station compatibility with your Personal Computer.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Power Supply
What it is: The connector type of the power source.
When it matters: The accessibility of the power source. For example a power supply with USB/USB-C connects to multiple devices, PC , PS4, Xbox One or even with your regular phone charger whereas a A/C adapter is less common.
Good value: USB/USB-C
:
N/A
Dock Charging
What it is: Charging the headphones via the dock/base station instead of a charging cable.
When it matters: It makes charging your headphones easier and gives you a sport to store your headphones when they are not in use.
Good value: Yes
:
N/A

These in-ear buds do not have a dock. If you want a headphone that's versatile and has a dock, try the SteelSeries Arctis 7. However, they won't be as compact and easy-to-carry around on your person.

7.7 Wireless Range
What it is: Headphones that offer a cable-free listening experience over a wireless network, typically via Bluetooth or radio frequency.
When it matters: If you don't want to be limited by the length of an audio cable. This means having the freedom to move around in your home or office with a much greater range than an audio cable could provide, especially, if the Bluetooth source is heavy or difficult to carry.
Score components:
Obstructed Range
What it is: The range that the wireless headphones can reach before dropping any audio when the Bluetooth source was placed in another room.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in an indoor environment. Although, the obstructed wireless range will slightly depend on your home or office layout.
Good value: >35ft
Noticeable difference: 5ft
:
35 ft
Line of Sight Range
What it is: The range that the wireless headphones can reach before dropping any audio when in direct line of sight of the Bluetooth device.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in a large and open environment.
Good value: 170ft or more
Noticeable difference: 10ft
:
118 ft

The ActivBuds S-250 have a surprisingly good wireless range wireless range. They reached up to 35ft when the Bluetooth source was obstructed and up to 118ft in direct line of sight. They should have enough range for most use cases, especially if you keep your phone on you.

4.0 Latency
What it is: How long it takes for audio to play through your headphones once the audio signal has been sent from a source.
When it matters: When gaming or watching movies. High latency means you will hear the audio much later than the images you see on screen.
Score components:
Default Latency
What it is: The Base RF latency or the default sub-band coding (SBC) of most Bluetooth headphones.
When it matters: When watching videos a high latency can cause sync issues between the images you see and the audio you hear.
Good value: 50ms or less
Noticeable difference: 15ms
:
155 ms
aptX Latency
What it is: An audio coding algorithm (Codec) that improves bit rate efficiency. It reduces latency and improves sound quality over Bluetooth.
When it matters: For better sound quality if your often streaming music over Bluetooth. Also it slightly improves latency when watching videos with wireless headphones.
Good value: 50ms or less
Noticeable difference: 15ms
:
N/A
aptX(LL) Latency
What it is: Low latency variation of aptX that significantly reduces sync issues between video and sound when using Bluetooth headphones.
When it matters: When watching videos or gaming latency is a lot more noticeable than just listening to music.
Good value: 50ms or less
Noticeable difference: 5ms
:
N/A

The Senso Bluetooth Headphones have a decent latency performance for a Bluetooth headset, but unfortunately, it's still a bit too high to be suitable for watching movies and gaming.

In the box

SENSO ActivBuds S-250 In the box Picture

  • Senso ActivBuds S-250  Headphones
  • Earbud tips (x4)
  • USB charging cable
  • Carrying case
  • Cable Management Clip
  • Dual Port USB Car Charger
  • Manual

Compared to other Headphones

SENSO ActivBuds S-250 Compare Picture

The Senso Bluetooth Headphones ActivBuds S-250 are straightforward wireless in-ears with an ear-hook design. They're decently well-built and comfortable, and they're stable enough for the gym and sufficiently portable to carry on your person at all times. They're a good option for sports, but unfortunately, their poor sound quality makes them unsuitable for most use cases even if you do not care much about sound. 

Sony WI-SP500

The Anker SoundBuds Curve are much better sports headphones than the Sony WI-SP500. They offer a much better value for your money, thanks to their better sound quality more comfortable and stable fit and their longer battery life. On the other hand, the Sonys have NFC pairing and they have a slightly better wireless range but overall the Ankers are the better choice for sports and most use cases, especially in the budget range,

Anker SoundBuds Sport

The Anker SoundBuds Sport are average in-ear headphones that deliver a stable wireless fit that's great for sports. They're about as stable as the Senso ActivBuds S-250 despite not having an ear-hook design, but the in-ear buds go a bit deeper into the ear canal so they won't be as comfortable. On the upside, their in-ear fit blocks a lot more ambient noise, so they're more suitable to use in loud environments or while commuting. For purely sports go with the Senso Bluetooth Headphones, but if you need a bit more isolation for your commutes, then the SoundBuds Sports are a good option. Unfortunately, both have an overly bass-heavy sound so they may not be the ideal choice if sound quality is important for you.

SoundPeats Q9A

The Soundpeats Q9A are affordable sports headphones with a stable ear-hook design like the Senso ActivBuds S-250. They sound a lot better than the Senso although they won't be the best headphones for more critical listeners. They also struggle to isolate in noisy conditions, but overall, they are decent headphones for most use cases. The SoundPeats are a slightly better headset overall when compared to the ActivBuds S-250. However, they're not as sweatproof and do not come with as many accessories for around the same price.

Jaybird Freedom

The Jaybird Freedom are great sports headphones with a customizable sound and a good wireless range. They sound a lot better than the Senso ActivBuds S-250 and you can customize their sound to your liking thanks to the Jaybird MySound App. They're also better-built, more durable and feel more high-end than the Senso but they're a bit more expensive. The Jaybird Freedom are a much better headphone than the Senso so if you have the budget, they're the better choice. However, the battery life and budget price of the Senso Bluetooth Headphones makes them a somewhat okay alternative.

Anker SoundBuds Curve

The SoundBuds Curve are decently well-rounded in-ears for sports. They have a stable and sweatproof ear-hook design like Senso ActivBuds S-250 but come with additional stability fin and tips. They're more comfortable and better built, but the audio cable linking the two earbuds is not as good. On the upside, their sound quality is a lot more balanced than the Senso. The Curve have a similar design to the Senso but sound a lot better and outperform  ActivBuds S-250 for the same price.

+ Show more

Conclusion

5.7Mixed Usage
What it is This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
Below-average for mixed usage. These headphones are stable enough for sports and sufficiently compact so that you can have them on you at all times. This makes them a good choice for sports and a somewhat decent option for commuting. However, their poor isolation will let a lot of ambient noise seep into your audio, and their muddy, cluttered sound quality will be a deal breaker for most listeners.
4.6Critical Listening
What it is The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
Sub-par for critical listening. The Senso Bluetooth Headphones have a poorly balanced sound with an excessive amount of high bass and low mid that makes them sound muddy and cluttered. They also lack a lot of trebles which further emphasizes their dark sound profile. Their small closed earbuds also cannot create a spacious soundstage which, combined with their poor audio reproduction, makes them a poor choice for critical listening and most likely a deal breaker even for casual listeners.
6.2Commute/Travel
What it is How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
Average for commuting. They're easy-to-carry around and the low leakage can compensate for the poor noise isolation by playing your audio at higher volumes. However, they have a sub par sound quality and since they don't block much noise they shouldn't be your first choice for loud, noisy commutes.
7.6Sports/Fitness
What it is How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
Good for sports. The stable ear-hook design and compact, portable size makes them suitable to use while running or exercising. They're also wireless and a bit more comfortable than some other in-ear headphones. Unfortunately, their audio reproduction may be a deal breaker even if you sound quality is not that important for you.
6.0Office
What it is How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
Average at best for office use. The Senso Bluetooth Headphones will let a bit of the office chatter seep into your audio due to their poor isolation. However, since they don't leak much and won't be audible to anyone around you and you can mask some of the noise by turning your volume up. Unfortunately, their sound quality will be a deal breaker for most, especially if you like to listen to music while you work.
4.9Home Theater
Score components:
Below average for home theater use. They're decently comfortable but have high latency and a poor sound quality that will not be suitable for for watching movies.
4.7Gaming
Score components:
Below-average for gaming. They have a mediocre-at-best microphone, and a bit too much latency to be suitable for gaming. They also have no companion app so they won't be as customizable as most gaming headsets and their Bluetooth connection is not compatible with consoles.

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