The Razer Hammerhead True Wireless are passable truly wireless headphones. They have a large in-ear design that may not be the most comfortable for some users and unfortunately, they don't include other ear-tips in the box. They have a bass-heavy sound profile too, which makes mixes dark and muddy. They also have a 'Gaming Mode' that lowers latency on Android and iOS, but it's probably still too high for competitive gameplay on PC.
The Razer Hammerhead True Wireless are mediocre for mixed-use. While their earbud design makes them easily portable, they aren't the most comfortable. They struggle to reduce almost any background noise including bus and plane engines or office chatter. They're stable headphones, however, which is good for light exercise. Their dark and muddy sound may not be suited for most genres of music though. They also have high latency, and though enabling 'Gaming Mode' can significantly reduce it, it may not be enough for serious gaming.
The Razer Hammerhead True Wireless are mediocre for neutral sound. Their default sound profile is very bass-heavy, resulting in a dark and muddy mix, which may not be suited for all audio. They also have a poor soundstage that feels small and limited. On the upside, they have an excellent frequency response consistency so you should get the same sound reproduction each time you use them.
The Razer Hammerhead True Wireless are mediocre for commuting. They barely reduce background noise such as bus or plane engines and they may not be comfortable for long periods of time. Although they're very portable, their 3.7-hour battery life may not be enough to get you through most flights.
The Razer Hammerhead True Wireless are 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. Although we don't currently test for it, they also have an IPX4 rating for water resistance, which is great. However, not everyone will find their fit comfortable.
The Razer Hammerhead True Wireless are disappointing for office use. Their bulky design isn't the most comfortable for long listening sessions while their battery life needs to be charged throughout your work day. They also don't really block out background noise so they won't be the right choice to drown out office chatter. At the very least, they don't leak too much sound, so you can turn up the volume on your favorite mixes without coworkers hearing it.
The Razer Hammerhead True Wireless are disappointing for wireless gaming. While they have a lower latency if you use their 'Gaming Mode', it may still be too high for serious gaming. These headphones are also Bluetooth-only, so while you can use them on your mobile devices, they won't be able to connect to consoles.
The Razer Hammerhead True Wireless are Bluetooth-only headphones that can't be used wired.
The Razer Hammerhead True Wireless are disappointing for phone calls. Voices recorded by their integrated microphone sounds muffled and struggles to separate speech from background noise, even in moderately loud environments. These earbuds also do a poor job of isolating background so your audio may get drowned out by ambient sound around you.
The Razer Hammerhead True Wireless have a sleek, matte black look. While they look similar to the Apple AirPods, they also have shorter stems and a green Razer logo on both earbuds' backs. They also have 'Razer' engraved on their carrying case.
These earbuds aren't the most comfortable. They're fairly 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 put pressure here which can further reduce their comfort.
The Razer Hammerhead True Wireless have disappointing controls. Although basic commands are easy to use, these earbuds don't have volume control so you have to adjust the volume on your device. 'Gaming Mode' and pairing mode can also be difficult to remember as they rely on a series of taps and 2-second holds to register these commands.
The Razer Hammerhead are remarkably breathable. They don't really trap heat in your ear so if you wear them during workout, you shouldn't sweat more than usual.
Like most truly wireless earbuds, the Razer Hammerhead True Wireless are exceptionally portable and can easily fit into most pockets. Their charging case is also fairly small.
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.
These headphones have an alright build. 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.
The Razer Hammerhead True Wireless are stable earbuds. On the downside, they don't come with differently sized ear tips and their earbud is fairly large. However, they should fit well enough to stay in place if you're running or working out.
The Razer Hammerhead True Wireless' sound profile is very bass-heavy and muddy. While the extra bass is good for music 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 and may not be suited for more vocal-centric content.
The frequency response consistency of these headphones is superb and you should get a consistent sound reproduction every time you use them.
The bass accuracy of the Razer Hammerhead True Wireless is poor. There's an overall overemphasis across the range that creates a heavy, boomy, and muddy sound.
The mid accuracy of the Razer Hammerhead True Wireless is okay. There's still a bit of overemphasis in the low-mid range which further clutters your mix, but there's a significant dip through the rest of the mid-range. Vocals and lead instruments move further back in the mix and sound weak and distant.
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.
The peaks and dips performance of the Razer Hammerhead True Wireless is alright. Most of the mid-mid and high-mid range is recessed, which will push vocals and leads to the back of the mix. The large peak in high-mid/low-treble, as well as the peaks in mid-treble, will make some higher frequency voices or instruments sound piercing and sharp.
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 reproduction. The L/R drivers of our unit are also very well-matched, though these results are only valid for our unit and yours may perform differently.
Like most in-ears, the soundstage of the Razer Hammerhead True Wireless is poor. A large and spacious soundstage depends on activating the pinna (or outer ear) with resonances. However, the in-ear design of these headphones fully by-passes the pinna. While these earbuds have a more open soundstage than closed-back in-ears, it still sounds fairly small and limited.
These headphones don't have any virtual soundstage features.
The weighted harmonic distortion of the Razer Hammerhead True Wireless is decent. There's a couple of peaks in the treble range 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.
These results are only valid for these test settings. We only tested 'Gaming Mode' for its Bluetooth latency.
The Razer Hammerhead True Wireless are terrible at noise isolation. They don't block out any low noises like bus or plane engines and they barely reduce chatter. They also struggle to cut down higher-pitched sounds like the hums of A/C units. This lack of noise isolation can be an upside for some, though, as you can still listen to your music while maintaining awareness of your surroundings.
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 on max volume, it shouldn't really bother those around you unless you're in a quiet setting like a library.
These headphones have an integrated microphone.
The recording quality of the microphone on these headphones is disappointing. While your voice is still understandable, it sounds muffled and lacking in detail.
The noise handling performance of this microphone is disappointing. Although the person on the other end of the line should be able to hear you in relatively quiet environments, this microphone struggles to separate speech from background noise. If you're talking in even moderately noisy spaces like a busy street, your voice may be lost in the background sound.
These headphones have a mediocre battery performance. Their continuous battery life is a bit shorter than other truly wireless headphones but their three additional charges in the carrying case can help extend your listening time. Luckily, these headphones also take roughly an hour to fully charge so you won'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.
These headphones use the Razer Hammerhead True Wireless app. This mediocre app is fairly limited and while it tells you the current battery level for both earbuds individually, it lacks sound customization. You can toggle between their default sound, 'Bass Boost', and 'Treble Boost', but that's about it.
Update 02/24/2020: We tested latency with gaming mode enabled and measured 111ms of latency on PC, 22ms on Android, and only 6ms on iPhone. This significantly reduces latency overall, but the difference will likely only be noticeable on mobile devices.
The Razer Hammerhead True Wireless are Bluetooth-only truly wireless headphones that have a dedicated 'Gaming Mode', reducing latency on both Android and iOS, which is great for mobile gamers. On the downside, they don't have multi-device or NFC pairing.
These headphones are Bluetooth-only.
These headphones are Bluetooth-only and can't be used wired. They come with a USB-C cable to charge the carrying case. If you're looking for wired gaming headphones that are still in-ear, check out the Turtle Beach Battle Buds.
These headphones can only be used on Bluetooth-enabled PCs and aren't compatible at all with the PS4. Although they have lower latency than most other Bluetooth headphones, you may find the latency still too high for competitive gaming.
These Bluetooth-only headphones aren't compatible with the Xbox One.
Although Razer is better known for their gaming-centric products, the Razer Hammerhead True Wireless are more casual truly wireless earbuds. These Bluetooth headphones have a unique gaming mode feature that reduces lag but it may still be too high for serious gamers. Their sound profile is also very bass-heavy, which can make your music sound muddy and dark. If you like the wireless look, 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.
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 more consistent among users with the Razer, and with gaming mode enabled, their latency is lower on non-iOS devices.
The Apple AirPods 2 Truly Wireless 2019 are better truly wireless headphones than the Razer Hammerhead True Wireless because they're 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.
The Samsung Galaxy Buds Truly Wireless are much better truly wireless in-ears than the Razer Hammerhead True Wireless; they're much more comfortable, feel more premium, have a much better-balanced sound profile, block more background noise, and have a dedicated companion app. On the other hand, the Hammerhead have lower latency with gaming mode enabled.
The Razer Hammerhead True Wireless are better wireless earbuds than the JBL TUNE 220TWS Truly Wireless. The Razer have much more bass, though some people may find them too bass-heavy. 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.
The Anker SoundCore Liberty Air 2 Truly Wireless are much better truly wireless in-ears than the Razer Hammerhead True Wireless since they have a much better-balanced sound profile, block more ambient noise, are more comfortable, have better controls, better battery life, a dedicated companion app, and feel more premium. On the other hand, the Razer have a lower latency with gaming mode enabled.
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 Battle Buds are wired and can be plugged directly into the controller of your console. Their microphone also performs a lot better than the Razer.
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 don't provide very good value otherwise since they 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 more noise.