Razer Hammerhead True Wireless Headphones Review

Tested using Methodology v1.5
Updated Apr 27, 2021 at 03:22 pm
Razer Hammerhead True Wireless Picture
6.0
Neutral Sound
6.1
Commute/Travel
7.9
Sports/Fitness
5.7
Office
5.2
Wireless Gaming
5.0
Wired Gaming
5.7
Phone Calls
Type Earbuds
Enclosure Closed-Back
Wireless Truly Wireless
Noise Cancelling No
Mic Yes
Transducer Dynamic

The Razer Hammerhead True Wireless are truly wireless headphones with an onboard 'Gaming Mode' function for low latency via Bluetooth. They're decently well-built and do a good job of staying in your ears, but they're not especially comfortable due to their large buds and lack of other ear tip sizes. They have a bass-heavy sound profile, too, which makes mixes dark and muddy. Their sub-four-hour continuous battery life also isn't particularly impressive.

Our Verdict

6.0 Neutral Sound

The Razer Hammerhead are passable for neutral sound. Their default sound profile is very bass-heavy, which can clutter and muddy vocals and lead instruments. Like most in-ears, they also have a poor passive soundstage that feels small and limited. On the upside, they deliver audio very consistently.

Pros
  • Consistent audio reproduction.
Cons
  • Very limited sound customization via companion app.
6.1 Commute/Travel

The Razer Hammerhead are an unremarkable option for commuting. They barely reduce background noise like bus or plane engines, and they may not be comfortable for long periods of time. Although they're very portable, their sub-four-hour continuous battery life may not be enough to get you through most flights. Using their 'Gaming Mode' helps to drop latency on mobile devices, which is good if you enjoy watching videos on your way into the office or to class.

Pros
  • Decently sturdy construction.
  • Compact design.
  • Low levels of audio leakage.
Cons
  • Somewhat uncomfortable fit.
  • Short continuous battery life.
  • Bad noise isolation capability.
7.9 Sports/Fitness

The Razer Hammerhead are very good for sports. These earbuds are easy to take with you to the gym, and even though they don't come with differently sized ear-tips, they should be stable enough for running or light workouts. They feel decently sturdy, and although we don't currently test for it, they also have an IPX4 rating for water resistance. However, not everyone is likely to find their fit comfortable.

Pros
  • Stable in-ear fit.
  • Decently sturdy construction.
  • Compact design.
Cons
  • Somewhat uncomfortable fit.
5.7 Office

The Razer Hammerhead are disappointing for office use. Their bulky design isn't the most comfortable for long listening sessions. Their short continuous battery life also means that they need to be charged throughout your workday. They also don't really block out office chatter. However, they don't leak too much sound, so you can turn up the volume on your favorite tracks without annoying nearby coworkers.

Pros
  • Low levels of audio leakage.
Cons
  • Somewhat uncomfortable fit.
  • Short continuous battery life.
  • Bad noise isolation capability.
5.2 Wireless Gaming

The Razer Hammerhead aren't suitable for wireless gaming. While they have a lower latency if you use their 'Gaming Mode', it's still likely to be too high for gaming. These headphones are also Bluetooth-only, so while you can use them on your mobile devices, they can't connect to consoles.

5.0 Wired Gaming

The Razer Hammerhead are Bluetooth-only headphones that can't be used wired.

5.7 Phone Calls

The Razer Hammerhead are disappointing for phone calls. Recorded speech is muffled and lacking in detail. Their integrated mic struggles to separate speech from background noise, even in moderately loud environments. These earbuds also do a poor job of isolating background noise, so you may have trouble hearing what's being said on a call in louder environments.

Pros
  • Consistent audio reproduction.
Cons
  • Bad noise isolation capability.
  • Middling mic recording quality and noise handling capability.
  • 6.0 Neutral Sound
  • 6.1 Commute/Travel
  • 7.9 Sports/Fitness
  • 5.7 Office
  • 5.2 Wireless Gaming
  • 5.0 Wired Gaming
  • 5.7 Phone Calls
  1. Updated Jul 22, 2021: Converted to Test Bench 1.5.
  2. Updated Apr 27, 2021: Updated review for accuracy and clarity.
  3. Updated Feb 05, 2020: Converted to Test Bench 1.4.

Test Results

perceptual testing image
Design
Design
Style

The Razer Hammerhead have a sleek, matte finish. While their ear-stem design is reminiscent of the the Apple AirPods 2 Truly Wireless 2019, they also have shorter stems and a green Razer logo on both earbuds' backs. They also have the manufacturer logo engraved on their carrying case. Aside from the monochrome black colorway of our test unit, these earbuds are also available in white or pink.

6.5
Design
Comfort
Weight 0.02 lbs
Clamping Force
0 lbs

These earbuds are reasonably comfortable. They're relatively large and don't come with any differently sized ear tips. Even though they don't go too deep into your ear canal, they can still apply a lot of pressure to the inside of your ear, which can cause some discomfort during longer listening sessions.

5.1
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Okay
Feedback Good
Call/Music Control Yes
Volume Control No
Microphone Control No
Channel Mixing
No
Noise Cancelling Control No
Talk-Through
No
Additional Controls Voice Assistant

These earbuds have a disappointing control scheme. Although basic commands are easy to use, these earbuds don't have on-board volume controls, so you have to adjust the volume on your device. The overall list of controls can be a little complicated to remember. You can turn on an individual bud by holding it down for two seconds, which also rejects incoming calls or enables your phone's voice assistant. Touching and holding either bud for half a second answers or ends calls and pauses or plays media. Double tapping either bud accepts incoming calls, allows you to switch to another call, or skips to the next track. A triple tap of either bud skips to the previous track. Tapping and holding either for six seconds puts them into their Bluetooth pairing mode. You can enable their 'Gaming Mode' with a double-tap followed by a two-second hold, which also clears all paired devices from the buds. You should receive audio prompts for answering and rejecting calls, enabling your phone's voice assistant, powering on your earbud, enabling and disabling 'Gaming Mode', and Bluetooth pairing.

9.2
Design
Breathability
Avg.Temp.Difference 0.8 °C

The Razer Hammerhead are remarkably breathable. They don't really trap heat in your ear so if you wear them during a workout, you shouldn't sweat more than usual.

9.5
Design
Portability
L 1.5" (3.8 cm)
W 1.0" (2.5 cm)
H 0.7" (1.8 cm)
Volume 1.10 in³ (18.03 cm³)
Transmitter Required No

Like most truly wireless earbuds, the Razer Hammerhead are exceptionally portable and can easily fit into most pockets. Their charging case is also fairly small.

6.5
Design
Case
Type Hard case
L 3.0" (7.6 cm)
W 1.5" (3.8 cm)
H 1.0" (2.5 cm)
Volume 4.50 in³ (73.74 cm³)

The Razer Hammerhead's carrying case is okay. While it looks and feels similar to that of the Anker SoundCore Life P2 Truly Wireless, the lid is very wobbly and can easily open when dropped or bumped.

7.0
Design
Build Quality

These headphones have satisfactory build quality. Although both the earbuds and the case are made of plastic, the earbuds feel more durable, while the case has a wobbly lid and loose hinges, making it feel cheap. The earbuds are also rated IPX4 for water resistance, but we don't currently test for this.

7.5
Design
Stability

The Razer Hammerhead True Wireless are stable earbuds. They should stay in place if you're running or working out. On the downside, they don't come with differently-sized ear tips to help you find the right fit for your ear size.

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

  • Razer Hammerhead True Wireless headphones
  • 1x silicone tips
  • Charging case
  • USB-C charging cable
  • Wrist strap
  • Manuals

Sound
Sound
Sound Profile
Bass Amount
5.5 dB
Treble Amount
-6.54 dB

The Razer Hammerhead's sound profile is very bass-heavy and muddy. While the extra bass emphasizes the thump and rumble of genres like EDM and hip-hop, it can also help to immerse you in action-packed gameplay. However, the dark treble reduces the clarity and detail of your mixes so they may not be as well-suited for vocal-centric content. If you aren't a fan of their default audio reproduction, they also have 'Bass Boost' and 'Treble Boost' EQ presets that can be enabled via their companion app.

9.4
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.12 dB

The frequency response consistency of these headphones is superb. Sound reproduction should be consistent every time you use them.

Sound
Raw Frequency Response
5.2
Sound
Bass Accuracy
Std. Err.
8.04 dB
Low-Frequency Extension
10.6 Hz
Low-Bass
5.27 dB
Mid-Bass
9.8 dB
High-Bass
9.92 dB

The bass accuracy of the Razer Hammerhead True Wireless is poor. There's an overall overemphasis across the range that emphasizes the thump and punch of EDM and hip-hop tracks. However, some may find this muddy and boomy.

6.6
Sound
Mid Accuracy
Std. Err.
4.51 dB
Low-Mid
5.23 dB
Mid-Mid
-1.11 dB
High-Mid
-4.12 dB

The mid accuracy of the Razer Hammerhead True Wireless is okay. The overemphasis in the low-mids clutters vocals and lead instruments, while the dip throughout the rest of the mid-range nudges vocals and lead instruments to the back of the mix and makes them sound weak and distant.

6.5
Sound
Treble Accuracy
Std. Err.
5.16 dB
Mid-Treble
-2.12 dB
Low-Treble
-4.9 dB
High-Treble
-15.1 dB

The treble accuracy of the Razer Hammerhead True Wireless is mediocre. Most of the treble range is underemphasized, so instruments lose their detail and presence while sibilants like S and T are slightly dull.

6.5
Sound
Peaks/Dips
Peaks
2.41 dB
Dips
1.61 dB

The peaks and dips performance of the Razer Hammerhead True Wireless is alright. The extended bump from the mid-bass to low-mid range adds boominess and muddies vocals and lead instruments. Most of the mid-mid and high-mid range is recessed, which weakens vocals and leads and pushes them to the back of the mix. The uneven low-treble range can give an alternatively harsh quality to the upper harmonics of vocals and lead instruments and make them sound somewhat dull, depending on their frequency. Another peak in the mid-treble range makes sibilants, like S and T sounds, piercing and painful.

9.2
Sound
Imaging
Weighted Group Delay
0.25
Weighted Phase Mismatch
1.9
Weighted Amplitude Mismatch
0.28
Weighted Frequency Mismatch
1.1

The stereo imaging of the Razer Hammerhead True Wireless is excellent. The group delay is below the audibility threshold for the entire range, ensuring a tight bass and transparent treble. The L/R drivers of our unit are also very well-matched in regards to phase, amplitude, and frequency response, which should ensure the accurate placement of objects like voices and footsteps in the stereo image. However, these results are only valid for our unit, and yours may perform differently.

2.7
Sound
Passive Soundstage
PRTF Accuracy (Std. Dev.)
N/A
PRTF Size (Avg.)
N/A
PRTF Distance
N/A
Openness
9.2
Acoustic Space Excitation
2.8

Like most in-ears, the Razer Hammerhead True Wireless have a terrible passive soundstage. A large and spacious soundstage depends on interaction with the outer ear, which earbuds bypass. While these earbuds have a more open soundstage than other closed-back in-ears, it still sounds fairly small and limited.

0
Sound
Virtual Soundstage
Head Modeling
No
Speaker Modeling
No
Room Ambience
No
Head Tracking
No
Virtual Surround
No
7.2
Sound
Weighted Harmonic Distortion
WHD @ 90
0.520
WHD @ 100
0.172

The weighted harmonic distortion of the Razer Hammerhead True Wireless is decent. There's a couple of peaks in the low-treble range at moderate listening volumes, but it may not be noticeable to all listeners. Otherwise, the rest of the frequency responses fall within good limits and should result in fairly clear and pure audio reproduction.

Sound
Test Settings
Firmware
1.10.7.0
Power
On
Connection
Bluetooth 4.2
Codec
SBC, 16-bit, 48kHz
EQ
Default
ANC
No ANC
Tip/Pad
Default
Microphone
Integrated

These results are only valid for these test settings. We only tested 'Gaming Mode' for its Bluetooth latency.

Isolation
2.2
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-6.05 dB
Bass
0 dB
Mid
-2.08 dB
Treble
-16.08 dB

The Razer Hammerhead True Wireless have terrible noise isolation capability. They don't block out any bass-range ambient noise like the low rumble of bus or plane engines. They do a similarly terrible job of filtering out background chatter. They do a little better when it comes to treble-range ambient noise, like the high-pitched hum of an A/C unit, but their performance in this respect is still poor.

7.6
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
36.09 dB

These headphones have good leakage performance. Most of the leakage is concentrated in the higher frequencies and sounds thin. If you like to listen to your music at high volumes, it shouldn't bother those around you unless you're in a very quiet setting like a library.

Microphone
Microphone
Microphone Style
Integrated
Yes
In-Line
No
Boom
No
Detachable Boom
No
5.6
Microphone
Recording Quality
Recorded Speech
LFE
306.43 Hz
FR Std. Dev.
3.52 dB
HFE
6,639.82 Hz
Weighted THD
88.674
Gain
7.08 dB

The recording quality of the microphone on these headphones is disappointing. While your voice should sound natural, it's likely to be muffled, thin, distorted, and lacking in detail.

7.0
Microphone
Noise Handling
SpNR
9.14 dB
Noise Gate
No
Speech + Pink Noise Handling
7.0
Speech + Pink Noise Audio Sample
Speech + Subway Noise Handling
7.0
Speech + Subway Noise Audio Sample

The microphone's noise handling capability is middling. If you're talking in even moderately noisy spaces like a busy street, people on the other end of the line are likely to have trouble understanding what you're saying.

Active Features
6.3
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
3.7 hrs
Additional Charges
3.0
Total Battery Life
14.8 hrs
Charge Time
1 hrs
Power-Saving Feature
Standby mode
Audio While Charging
Yes
Passive Playback
No
Charging Port USB-C

These headphones have a mediocre battery performance. Their sub-four-hour continuous battery life is much shorter than other truly wireless headphones, like the EarFun Air Pro True Wireless, but it's worth noting that battery life can vary with usage. Their case supplies roughly three additional charges, which should last you more than a day of use. They take about an hour to fully charge so you shouldn't be away from your music for too long. They also have standby mode to help conserve battery life, and you can also use either earbud while the other one is charging.

6.0
Active Features
App Support
App Name Razer Hammerhead True Wireless
iOS Yes
Android Yes
macOS No
Windows No
Equalizer
Presets
ANC Control
No
Mic Control No
Room Effects
No
Playback Control
No
Button Mapping No
Surround Support
No

The Razer Hammerhead True Wireless companion app is passable. It's fairly limited in terms of overall functionality, as it only shows the remaining charge and allows you to toggle between their 'Default', 'Bass Boost', and 'Treble Boost' EQ presets. If you're looking for a pair of truly wireless Razer headphones with a graphic EQ, try the Razer Hammerhead True Wireless Pro.

Connectivity
6.5
Connectivity
Bluetooth
Bluetooth Version
5.0
Multi-Device Pairing
No
NFC Pairing
No
Line Of Sight Range
94.00 ft (28.65 m)
PC Latency (SBC)
271 ms
PC Latency (aptX)
N/A
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
131 ms
Android Latency
172 ms

The Razer Hammerhead True Wireless have acceptable Bluetooth connectivity. They support Bluetooth 5.0, but not NFC or multi-device pairing, so you can't stream music from your phone while remaining connected to your computer. Without using their 'Gaming Mode', latency on PC and iOS devices is quite high, which could be disruptive while streaming videos or movies. They perform better in this respect when it comes to mobile Android devices. They perform significantly better in this regard across most devices when using their 'Gaming Mode'. However, it's worth noting that different apps and devices compensate to varying degrees for latency, so your real-world experience may vary.

Note: Enabling the earbuds' 'Gaming Mode' reduced their latency on PC to 111ms, on Android to 22ms, and on iOS to 6ms.

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 are Bluetooth-only and can't be used wired. They come with a USB-C to USB-A cable to charge the carrying case. If you're looking for wired gaming headphones that are still in-ears, check out the Turtle Beach Battle Buds or the Razer Hammerhead USB-C ANC.

Connectivity
PC Compatibility
Analog
No
Wired USB
No
Non-BT Wireless
No
Connectivity
PlayStation Compatibility
PS4 Analog
No
PS4 Wired USB
No
PS4 Non-BT Wireless
No
PS5 Analog
No
PS5 Wired USB
No
PS5 Non-BT Wireless
No
Connectivity
Xbox Compatibility
Xbox One Analog
No
Xbox One Wired USB
No
Xbox One Non-BT Wireless
No
Xbox Series X|S Analog
No
Xbox Series X|S Wired USB
No
Xbox Series X|S 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 case holds three additional charges and charges via USB-C. It doesn't have any additional inputs.

Differences Between Sizes And Variants

The Razer Hammerhead True Wireless are available in three color variants: 'Black', 'Mercury', and 'Quartz'. We tested the 'Black' variant, but expect the other variants to perform similarly overall.

If you come across another variant of these earbuds, let us know in the discussions below so that we can update our review.

Compared To Other Headphones

The Razer Hammerhead are true wireless earbuds with a 'Gaming Mode' feature via Bluetooth that reduces audio latency, which is helpful if you want to watch movies or videos on your phone, but it may still be too high for serious gamers. Unlike the EPOS GTW 270 Hybrid Truly Wireless, they don't require a secondary USB-C dongle to offer low-latency audio, though the Razer aren't as well-built or as comfortable. They also have fewer sound customization features than the Razer Hammerhead True Wireless Pro.

If you're looking for alternatives, check out our recommendations for the best truly wireless earbuds and the best wireless earbuds. If you need more noise isolation, see our picks for the best noise cancelling earbuds and in-ears.

Apple AirPods 2 Truly Wireless 2019

The Apple AirPods 2 Truly Wireless 2019 are slightly better truly wireless headphones than the Razer Hammerhead True Wireless. The AirPods are more comfortable, feel more premium, and have a better-balanced sound profile. On the other hand, the Razer have a more consistent listening experience among users, feel much more stable in the ear, and have much lower latency on non-iOS devices with 'Gaming Mode' enabled.

Razer Hammerhead True Wireless Pro

The  Razer Hammerhead True Wireless Pro are a slightly better pair of headphones than the Razer Hammerhead True Wireless. The Pro are more comfortable, better-built, and have graphic EQ and presets so that you can customize their sound profile. Their mic also offers better overall performance, and they have longer continuous battery life. While they also have an active noise cancelling (ANC) feature, it doesn't offer better noise isolation than their passive isolation performance.

Apple AirPods Pro Truly Wireless

The Apple AirPods Pro Truly Wireless are better truly wireless in-ears than the Razer Hammerhead True Wireless. The Apple are much more comfortable, feel more premium, and have a much better-balanced sound profile. On the other hand, the listening experience is slightly more consistent among users with the Razer, and with gaming mode enabled, their latency is lower on non-iOS devices.

Razer Hammerhead USB-C ANC

The Razer Hammerhead True Wireless are better headphones for mixed-use than the Razer Hammerhead USB-C ANC. The True Wireless have a more stable fit and can deliver a significantly more thumpy, punchy bass. They also have a companion app with EQ presets. However, they have a mediocre battery life as well as high latency across PC, iOS, and Android. In comparison, the wired USB-C ANC have a better build quality and include volume controls. Their in-line mic also performs better too, and their audio latency is very low. Unfortunately, while they have an ANC feature, it struggles to cut down bass range noise.

Samsung Galaxy Buds Truly Wireless

The Samsung Galaxy Buds Truly Wireless are much better truly wireless in-ears than the Razer Hammerhead True Wireless. The Samsung are comfier, feel better-built, have a much better-balanced sound profile, block more background noise, and have a dedicated companion app with a broader range of sound customization features. On the other hand, the Razer have lower latency with gaming mode enabled.

Anker SoundCore Liberty Air 2 Truly Wireless

The Anker SoundCore Liberty Air 2 Truly Wireless are much better truly wireless in-ears than the Razer Hammerhead True Wireless. The Anker have a much better-balanced sound profile, block more ambient noise, are more comfortable, have better controls, better battery life, and feel more premium. They also have a companion app with more customization features, including a graphic EQ. On the other hand, the Razer have a lower latency with gaming mode enabled.

JBL TUNE 220TWS Truly Wireless

The Razer Hammerhead True Wireless are better wireless earbuds than the JBL TUNE 220TWS Truly Wireless. The Razer have a much more bass-heavy sound profile, though some people may find this to be overwhelming. They also have a better battery life, a dedicated app with EQ presets, and lower latency. On the other hand, the JBL are available in a wider range of colors and have a much better microphone.

Monster Clarity 101 AirLinks Truly Wireless

The Monster Clarity 101 AirLinks Truly Wireless are more versatile Bluetooth earbuds than the Razer Hammerhead True Wireless. Mobile gamers will appreciate the Razer's unique low-latency 'Gaming Mode' on iOS and Android, but the earbuds have a poorly balanced sound-profile and mediocre fit. The Monster earbuds don't have the most balanced sound, either, but aren't as boomy, have a much longer battery life, and isolate against more noise.

Turtle Beach Battle Buds

The Turtle Beach Battle Buds are a better pair of gaming headphones than the Razer Hammerhead True Wireless. While the Razer are better for daily use thanks to their truly wireless design, they're Bluetooth-only and therefore cannot be used with a PS4 or Xbox One. On the other hand, the Turtle Beach are wired and can be plugged directly into the controller of your console. Their microphone also performs a lot better than the Razer.

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