TOZO NC7 Truly Wireless Headphones Review

Tested using Methodology v1.4
Reviewed Mar 23, 2021 at 08:38 am
TOZO NC7 Truly Wireless Picture
7.2
Mixed Usage
6.8
Neutral Sound
7.9
Commute/Travel
8.2
Sports/Fitness
6.9
Office
5.3
Wireless Gaming
5.2
Wired Gaming
6.8
Phone Calls
Type In-ear
Enclosure Closed-Back
Wireless Truly Wireless
Noise Cancelling Yes
Mic Yes
Transducer Dynamic

The TOZO NC7 Truly Wireless are budget-friendly noise cancelling truly wireless in-ears. Like the TOZO NC9 Truly Wireless, you can cycle between their ANC feature, which offers impressive noise isolation, and Transparency Mode, which lets in some ambient sound. Their slightly excited sound profile adds a little extra thump to your audio while making sibilants bright, but there isn't any way to customize their sound more to your liking.

Our Verdict

7.2 Mixed Usage

The TOZO NC7 are decent for mixed usage. Thanks to their impressive ANC feature, they can block out background noises during your commute or while working in a noisy office. Their stable, breathable design is also suitable for working out at the gym. However, their slightly excited sound profile may be too overwhelming for fans of a more neutral sound, and they don't offer any sound customization features.

Pros
  • Impressive noise isolation.
  • Portable, well-built design.
  • Good stability.
Cons
  • Disappointing mic noise handling performance.
  • No sound customization options.
  • Okay battery performance.
6.8 Neutral Sound

The TOZO NC7 are adequate for neutral sound. They have a somewhat excited sound profile that adds a little extra thump in the low-bass while nudging vocals and lead instruments towards the back of the mix. Also, sibilants like S and T sounds are piercing, which can be painful to listeners who prefer a more neutral sound. Unfortunately, they don't have any sound customization options.

Pros
  • Consistent audio delivery.
Cons
  • No sound customization options.
7.9 Commute/Travel

The TOZO NC7 are very good for commute and travel. Thanks to their ANC feature, they can block out background noises like bus and plane engines as well as the sounds of commuters chatting around you. They're portable and decently comfortable, though some listeners may not enjoy their deep in-ear fit. Also, their eight-hour continuous battery life may not last through long international flights.

Pros
  • Impressive noise isolation.
  • Portable, well-built design.
Cons
  • Okay battery performance.
8.2 Sports/Fitness

The TOZO NC7 are impressive for sports and fitness. These well-built, portable in-ears have a breathable design, so you don't sweat more than usual while wearing them. They're stable enough to stay in your ears during light workouts, but they don't have stability fins, so they may fall out during more intense exercises. Also, they sit a bit deep in your ears, which may not be comfortable for all listeners.

Pros
  • Portable, well-built design.
  • Good stability.
Cons
  • No stability fins.
6.9 Office

The TOZO NC7 are fair for office use. These headphones offer great noise isolation, so you aren't distracted by the sounds of coworkers talking nearby or the hum of AC units. They also don't leak a lot of audio, so you can crank up the volume without bothering your coworkers. Unfortunately, their deep in-ear fit may not be comfortable for everyone, and their eight-hour continuous battery life may not be suitable for long days at the office.

Pros
  • Impressive noise isolation.
Cons
  • Okay battery performance.
5.3 Wireless Gaming

The TOZO NC7 aren't compatible with PlayStation or Xbox consoles. They can be used with Bluetooth-compatible PCs, but their latency is likely too high to be suitable for wireless gaming.

5.2 Wired Gaming

The TOZO NC7 are wireless-only headphones that aren't suitable for wired gaming.

6.8 Phone Calls

The TOZO NC7 are reasonable for phone calls. Their integrated microphone has a decent recording quality, so whoever's on the other end of the line can understand you, but your voice may also sound a bit thin. The mic also struggles to separate your voice from background noises, so it isn't really suitable for making calls from noisy settings. Fortunately, their ANC feature can help block out background noise so you can focus on your call.

Pros
  • Impressive noise isolation.
Cons
  • Disappointing mic noise handling performance.
  • 7.2 Mixed Usage
  • 6.8 Neutral Sound
  • 7.9 Commute/Travel
  • 8.2 Sports/Fitness
  • 6.9 Office
  • 5.3 Wireless Gaming
  • 5.2 Wired Gaming
  • 6.8 Phone Calls

Test Results

perceptual testing image
Design
Design
Style

The TOZO NC7 are truly wireless in-ears with a similar design to the TOZO NC9 Truly Wireless and the TOZO T12 Truly Wireless. They're mostly made of matte plastic, and they have a glossy plastic outer ring. Their shape is rounded, which some listeners may find a bit bulky.

7.0
Design
Comfort
Weight 0.02 lbs
Clamping Force
0.0 lbs

The TOZO NC7 are decently comfortable. They come with lots of different sizes of earbud tips to help you get the best possible fit. However, they're a little bulky, and they sit a bit deep in your ear, which may not feel comfortable for everyone. Fortunately, pressing their touch-sensitive controls doesn't push them further into your ear.

7.6
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Decent
Feedback Good
Call/Music Control Yes
Volume Control Yes
Microphone Control No
Channel Mixing
No
Noise Cancelling Control On/Off
Talk-Through
On/Off
Additional Controls Voice Assistant

The controls are good. Tapping the left bud once lets you switch between ANC Mode and Transparency Mode, which lets in some ambient noise so you can hear people talking around you. However, you can't turn the ANC off entirely. Tapping the left bud twice skips back to the previous track, and holding it turns the volume down. You can tap the right bud once to play/pause your audio, twice to skip to the next track, and hold it to turn the volume up. If you get a phone call, you can tap either bud to answer and hold either bud to end or reject the call. Pressing either bud three times activates the voice assistant. Overall, the controls are responsive and there's lots of audible feedback, including voice prompts and beeps when you reach min and max volume.

9.2
Design
Breathability
Avg.Temp.Difference 0.8 C

The TOZO NC7 have superb breathability. Like most in-ears, they don't trap a lot of heat, so you shouldn't sweat more than usual while wearing them.

9.4
Design
Portability
L 1.4 "
W 1.3 "
H 1.0 "
Volume 1.8 Cu. Inches
Transmitter Required No

The TOZO NC7 are incredibly portable. They're small and lightweight. Their carrying case isn't very large, either, so it should fit easily into your pocket or bag.

7.5
Design
Case
Type Hard case
L 2.4 "
W 1.0 "
H 1.4 "
Volume 3.4 Cu. Inches

The case is good. It's mostly made of plastic, and it even supports wireless charging. There are even four LED lights to indicate the battery level.

7.5
Design
Build Quality

The TOZO NC7 have a good build quality. Like the TOZO NC9 Truly Wireless, they're mostly made of plastic, with a matte finish on the exterior and a glossy finish on the interior. They're even rated IPX6 for water resistance, though we don't currently test for this. However, the earbud tips seem like a potential weak point over time.

7.5
Design
Stability

The TOZO NC7 are stable. They should stay in your ears during casual listening sessions or even moderately intense workouts at the gym. However, they don't have stability fins, so they may fall out during more intense workouts.

Design
Headshots 1
Design
Headshots 2
Design
Top
Design
In The Box

  • TOZO NC7 headphones
  • 6x ear tips
  • Charging case
  • USB-C to USB-A charging cable
  • Manuals

Sound
Sound
Sound Profile
Bass Amount
3.73 db
Treble Amount
0.81 db

The TOZO NC7 have a slightly excited, V-shaped sound profile. There's a little extra emphasis in the low-bass that adds some thump to your audio, while vocals and lead instruments are nudged slightly towards the back of the mix. Sibilants like S and T sounds are bright, but some listeners may find that they sound a bit piercing. There aren't any sound customization features, so you can't adjust their sound.

8.6
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.28 dB

These headphones have excellent frequency response consistency. Once you get a proper fit with the included earbud tips, you should get a consistent audio delivery each time you use them.

Sound
Raw Frequency Response
8.3
Sound
Bass Accuracy
Std. Err.
2.41 dB
Low-Frequency Extension
10 Hz
Low-Bass
4.89 dB
Mid-Bass
0.82 dB
High-Bass
0.54 dB

The TOZO NC7 have impressive bass accuracy. The low-bass is overemphasized, so you really feel the deep thumps and rumbles in your audio, which is ideal for fans of bass-heavy music like EDM and hip-hop. The rest of the range is quite balanced, so the punch and fullness in the bass is present without becoming overwhelming.

7.8
Sound
Mid Accuracy
Std. Err.
2.92 dB
Low-Mid
0.02 dB
Mid-Mid
-3.36 dB
High-Mid
-3.39 dB

The mid accuracy is very good. The range is pretty balanced, but the mid-mids and high-mids are slightly underemphasized. As a result, vocals and lead instruments are nudged slightly towards the back of the mix, and they can be weak or distant.

7.0
Sound
Treble Accuracy
Std. Err.
3.95 dB
Low-Treble
-2.54 dB
Mid-Treble
5.38 dB
High-Treble
-2.82 dB

These headphones have decent treble accuracy. The slightly underemphasized low-treble can hurt the comprehensibility of vocals and lead instruments. However, the peak in the mid-treble makes sibilants, such as cymbals or S and T sounds, piercing and painful.

7.1
Sound
Peaks/Dips
Peaks
1.99 db
Dips
1.19 db

These headphones have a decent peak and dips performance. The peak in the low-bass adds thump to your audio. The dips in the mid-mids and high-mids can nudge vocals and lead instruments towards the back of the mix, and they can sound weak or distant. The peak in the mid-treble makes sibilants like cymbals piercing and painful.

8.6
Sound
Imaging
Weighted Group Delay
0.19
Weighted Amplitude Mismatch
1.12
Weighted Frequency Mismatch
1.72
Weighted Phase Mismatch
2.57

The TOZO NC7 have excellent imaging. Their weighted group delay falls below the audibility threshold, resulting in a tight bass and transparent treble. Also, the L/R drivers of our test unit are well-matched in phase, frequency, and amplitude response, so objects like footsteps and voices are accurately placed and localized within the stereo image. However, these results are only valid for our test unit, and your experience may vary.

0.8
Sound
Passive Soundstage
PRTF Accuracy (Std. Dev.)
N/A
PRTF Size (Avg.)
N/A
PRTF Distance
N/A
Openness
1.8
Acoustic Space Excitation
1.5

These headphones have an awful passive soundstage performance. Due to their in-ear design, they bypass the outer ear, which is one of the key factors in creating a large and out-of-body soundstage. As a result, sound seems like it's coming from inside your head, rather than from speakers placed all around you. They also have a closed-back design, so their soundstage isn't perceived to be as open as that of open-back headphones.

0
Sound
Virtual Soundstage
Head Modeling
No
Speaker Modeling
No
Room Ambience
No
Head Tracking
No
Virtual Surround
No App
8.0
Sound
Weighted Harmonic Distortion
WHD @ 90
0.179
WHD @ 100
0.105

The TOZO NC7 have a great weighted harmonic distortion performance. All frequencies fall within good limits, resulting in clear and pure audio reproduction.

Sound
Test Settings
Firmware
Unknown
Power
On
Connection
Bluetooth 5.0
Codec
SBC, 16-bit, 48kHz
EQ
No EQ
ANC
On
Tip/Pad
Silicone (small)
Microphone
Integrated

These are the settings we used to test these headphones. Our results are only valid when using these settings.

Isolation
8.2
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-21.0 dB
Bass
-20.54 dB
Mid
-15.68 dB
Treble
-26.05 dB

The TOZO NC7 have impressive noise isolation. With their ANC turned on, they can block out background noises such as bus and plane engines as well as voices and the hum of nearby AC units.

Note: You can't turn off the ANC feature on these headphones, though you can cycle between it and their Transparency Mode, which lets in some ambient noise. We tested these headphones completely off to measure their passive noise isolation performance for comparison.

8.7
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
29.4 dB

The TOZO NC7 have an amazing leakage performance. They don't leak a lot of audio, and escaping audio sounds quite thin. You should be able to listen to music at loud volumes without really bothering those around you.

Microphone
Microphone
Microphone Style
Integrated
Yes
In-Line
No
Boom
No
Detachable Boom
No
7.3
Microphone
Recording Quality
Recorded Speech
LFE
315.41 Hz
FR Std. Dev.
2.8 dB
HFE
4974.24 Hz
Weighted THD
0.369
Gain
12.66 dB

The integrated microphone has a satisfactory recording quality. Your voice should sound natural and understandable to whoever's on the other end of the line, but it can also sound a bit thin.

5.8
Microphone
Noise Handling
Speech + Pink Noise
Speech + Subway Noise
SpNR
8.61 dB

The microphone has a middling noise handling performance. It struggles to separate your voice from background noise, so the person on the other end of the line may have trouble understanding you, even if you're only calling from a moderately noisy setting.

Active Features
6.6
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
8.2 hrs
Additional Charges
2.0
Total Battery Life
24.6 hrs
Charge Time
1.1 hrs
Power-Saving Feature
No
Audio While Charging
Yes
Passive Playback
No
Charging Port USB-C

The TOZO NC7 have an okay battery performance. Though they have an advertised battery life of 10.5 hours, in our tests, they lasted for just over eight hours off of a single charge. However, battery life can vary depending on usage, so your experience may vary. You can also listen to audio through one bud while the other is charging, which is handy.

0
Active Features
App Support
App Name No App
iOS No
Android No
macOS No
Windows No
Equalizer
No
ANC Control
No
Mic Control No
Room Effects
No
Playback Control
No
Button Mapping No
Surround Support
No
Connectivity
6.9
Connectivity
Bluetooth
Bluetooth Version
5.0
Multi-Device Pairing
No
NFC Pairing
No
Line Of Sight Range
233 ft
PC Latency (SBC)
262 ms
PC Latency (aptX)
N/A
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
118 ms
Android Latency
131 ms

The TOZO NC7 have fair Bluetooth connectivity. They don't support NFC pairing, and you can only pair them with one device at a time. Their latency with PCs is also too high to be suitable for gaming. However, they perform a bit better with iOS and Android devices, so you can watch videos from your phone without a noticeable delay. Keep in mind that some apps compensate for latency differently, so your real-world experience may vary.

0
Connectivity
Non-Bluetooth Wireless
Non-BT Line Of Sight Range
N/A
Non-BT Latency
N/A
0
Connectivity
Wired
Analog Audio
No
USB Audio
No
Detachable No
Length N/A
Connection No Wired Option
Analog/USB Audio Latency
N/A

These headphones can't be used with a wired connection. They come with a USB-C to USB-A cable, but it's just for charging the case.

Connectivity
PC / PS4 Compatibility
PC/PS4 Analog
No
PC/PS4 Wired USB
No
PC/PS4 Non-BT Wireless
No

These headphones are compatible with Bluetooth-enabled PCs, but their latency is likely too high to be suitable for gaming. They also aren't compatible with PS4 or PS5 consoles.

Connectivity
Xbox One Compatibility
Xbox One Analog
No
Xbox One Wired USB
No
Xbox One Non-BT Wireless
No
2.2
Connectivity
Base/Dock
Type
Charging Case
USB Input
No
Line In
No
Line Out
No
Optical Input
No
RCA Input
No
Dock Charging
Yes
Power Supply
USB-C

The TOZO NC7 come with a charging case that around two extra charges. You can charge it using the included USB-C cable, and it also supports wireless charging.

Differences Between Sizes And Variants

The TOZO NC7 come in 'Black', and you can see the label for the model we tested here.

If you come across another version, let us know in the discussions so we can update our review.

Compared To Other Headphones

The TOZO NC7 are truly wireless in-ears that offer impressive noise isolation thanks to their ANC feature. Like the TOZO NC9 Truly Wireless, you can't turn the ANC off entirely, but you can switch them to Transparency Mode, which lets in some ambient noise to help you stay aware of your surroundings. That said, their slightly excited sound profile may not be ideal for all listeners, and they don't have any sound customization features. See also our recommendations for the best wireless earbuds, the best noise cancelling headphones under $100, and the best wireless Bluetooth earbuds under $100.

TOZO NC9 Truly Wireless

The TOZO NC7 Truly Wireless are better headphones than the TOZO NC9 Truly Wireless. The NC7 have a more balanced sound profile compared to NC9, especially in the bass range, so they're more suitable for fans of neutral sound. Also, they leak less audio, and they have longer continuous battery life. Their charging case also supports wireless charging, which is handy. That said, the NC9's charging case offers around one extra charge.

TOZO NC2 Truly Wireless

The TOZO NC7 Truly Wireless are better for most uses than the TOZO NC2 Truly Wireless. The NC7 have an impressive ANC feature, a more stable fit, and a better microphone recording quality. On the other hand, the NC2 have a longer continuous battery life and their case holds more extra charges. They're also smaller and less bulky than the NC7, which some may prefer. 

TaoTronics SoundLiberty 94 Truly Wireless

Depending on your listening habits, you may prefer either the TaoTronics SoundLiberty 94 Truly Wireless or the TOZO NC7 Truly Wireless. The TOZO have a more balanced sound profile, and they have longer continuous battery life. However, the TaoTronics offer better noise isolation, and they leak less audio.

Mpow X5 Truly Wireless

The Mpow X5 Truly Wireless and the TOZO NC7 Truly Wireless are similarly-performing headphones, so depending on your listening habits, you may prefer one over the other. The Mpow are more comfortable, and they have a slightly better noise isolation performance. However, the TOZO have a more balanced sound profile, especially in the bass range, and their continuous battery life is a bit longer.

Sony WI-SP600N Wireless

The TOZO NC7 Truly Wireless are better headphones than the Sony WI-SP600N Wireless. The TOZO have a more balanced sound profile compared to the Sony's bass-heavy sound. They also have better noise isolation, especially against bass-heavy background noise, and their continuous battery life is longer. However, some listeners may prefer the Sony's neckband design, and they have more sound customization features thanks to the graphic EQ and presets in their companion app.

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