This is Razer’s high end gaming-centric wireless headphones (I call it IEMs). The package comes included with a hard carrying case, a total of 4 eartips size (3 is single flange and 1 double flange) and a fancy Razer micro-USB cable for charging (this beat the fancy orange cable from JBL).

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones
Hard carrying case with groves build in

It has the gaming vibes design with glowing razer logo on the sides with breathing effect or soft slow pulze. The slim control center is located on the right side, house the charging port, microphone, volume rocker and call/media playback functions. Button are clicky but requires some force to actuate them. Is near to the mouth area and has good vocal pick-up/sound clear from our testing.

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones

The unique part about the wireless headphones is the battery hub doubles as a Magnetic Clip that snap on the shirt so the cable doesn’t dangle around. We tested this and is as good as the typical shortening cable tabs from on other brand, this is good as most of the battery weight is located behind rather on the earbuds or control center. Something new and works very well in sporting and gym activities.

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones

Sound isolation is good thanks to the long 0.6cm sound tube in combination with double flange eartips. Tho I wished it was angled as well for better comfort fit. It’s powered by pair of 10mm Neodymium Dynamic Drivers. It uses Bluetooth 4.1 for connectivity and supports Qualcomm aptX for android devices. The maximum stable line of sight is 12 meters.

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones
Double flange eartips

The rated battery life is 8 hours. Our battery life test is based on the iPhone 6 at the 2nd volume bar which is that loud enought for me (usually other brand at around 3rd to 5th volume bar). Our test gave us 11 hours and 40 minutes.



Technical Specification

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones
Double flange eartips vs Single flange eartips

Headphones:
Frequency response: 20 Hz – 20kHz
Impedance: 32 ± 15% Ω
Sensitivity: 116 ± 3 dB @ 1 kHz
Max input Power: 10mW
Drivers: 10 mm with Neodymium magnets
Cable length: 63 cm / 2.07 ft.
Approximate Weight: 0.06 lbs (28.0 g)

Microphone
Frequency response: 300 Hz – 3.4 kHz
Signal-to-noise ratio: ≥ 55 dB
Sensitivity (@1 kHz): 42 ± 3 dB
Pick-up pattern: Omnidirectional

In-line remote
Music Controls: Play/pause, next, back
Call Controls: Answer, end, reject call
General: Volume, pair, power

Battery
Battery type : 160 mAH rechargeable Li-Po battery
Battery life : Up to 8 hours*
Charge time : Up to 2 hours

Range
Bluetooth wireless range : 10 m / 30 ft

Audio quality

POP/EDM:
Tiaan – Be Ok (Low bass frequency)

Low bass frequency is superbly energetic, you can feel the air pressure booming in your ears. It doesn’t eat into the vocals and has zero bass distortion. The subtle bass vibrations fade smoothly. Low bass frequency is well bodied. The low bass doesn’t overpower the vocal much, both sounds balance.

Pia Mia – Do It Again (standard bass)

Bass is superbly energetic, you can feel the air pressure. The bass fade ultra-butter-smoothly especially at the 2:05 mark, the vibrations is just eargasm. Bass doesnt’t overpower vocal feel balanced, clear separation between the two. Bass is well bodied. EDM tones sound fun.

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones
Extra eartips and fancy dope looking charging cable

Vocals/Instrumentals:
Violinder – Raindrops (intrumentals)
Piano/Violin tone sounds right and natural, leans closer to the crystal-clear type not the warm-sound, I prefer crystal-clear type. It has right amount of shine at the highs, just right on. Tone are well bodied doesn’t sound half heart-ed. Bass/Drums feels balance with Piano/Violin in term of audible levels, there is clear separation between the two. Good indication of a balance IEM.

Pentatonix – See Through
Mitch Grassi’s hi-pitched-male Tennor vocals perform very well at the highs with the right amount of shine, feels bright. Each singer can be identified easily. Every diction and pronunciation is crystal clear. Vocal beatboxing, echoing and humming is eargasm which doesn’t overpower Mitch Grassi’s vocal in the song.

Calvinpixels.com | Calvin Pixels | Calvinpixels | Razer Hammerhead BT Review | Wireless Gaming Sport Headphones
I’m rather surprised despite being gaming orientated wireless headphones which should be heavy on bass and bad mid frequency like all the other gaming headset/headphones in the market, but NO! This IEM performs well for the low bass frequency right up the the high frequency. Im shocked as Razer improve so much from the first gen cabled version. Finally is nice to see they step up their game and hoping they continue this momentum.

Purchase the Razer Hammerhead BT Here

Amazon (USA Link)| Amazon (International Link)

Other Useful Links:
Our youtube audiophile playlist: Here

Other audiophile review on our site: Here

Audiophile ranking page: Here