Side by side comparison and review of Sennheiser CX 400BT and Razer Hammerhead HyperSpeed. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth / 2.4 GHz radio frequency - wireless | |
|---|---|---|---|
| Weight | - | 53 g | |
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
- | |
| Colour | White | Black | - | |
| Design | - | Games | |
| Recommended Use | Portable electronics | Game console, portable electronics, computer | |
| Gaming | - | Yes |
| SOUND QUALITY | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth / 2.4 GHz radio frequency | |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.2 | Razer Hammerhead HyperSpeed have a more advanced version of Bluetooth than Sennheiser CX 400BT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX | - | |
| Active Noise Cancelling | - | Yes | Razer Hammerhead HyperSpeed are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX 400BT offer a larger frequency range than Razer Hammerhead HyperSpeed. |
| Max Input Power | - | 5 mW | |
| Total Harmonic Distortion (THD) | 0.08% | - | |
| Sensitivity | - | 91 dB/mW | |
| Impedance | - | 16 Ohm | |
| Max Sound Pressure | 107 dB | - | |
| Diaphragm | 7 mm | 10 mm | Razer Hammerhead HyperSpeed have a thicker diaphragm than Sennheiser CX 400BT. |
| Features | - | Razer HyperSpeed Wireless, Razer Chroma RGB |
| MICROPHONE | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | - | Yes | Razer Hammerhead HyperSpeed microphone can cancel out ambient noise. |
| Noise Cancelling Technology | - | Environmental Noise Cancellation (ENC) | |
| Sensitivity | - | -26 dBFS | |
| Signal-To-Noise Ratio | - | 64 dB |
| REMOTE CONTROL | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | - |
|---|
| CABLE | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | USB-C charge cable - 50 cm |
|---|
| FEATURES | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - | |
| Additional Functions | - | LED backlight |
| BATTERY AND CHARGING | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 55 mAh | - | |
| Battery Life | 7 hour(s) | - | |
| Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
- | |
| Charging Time | 1.5 hour(s) | - | |
| Included Qty | 2 | - |
| WIRELESS LINK | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| OTHERS | Sennheiser CX 400BT | Razer Hammerhead HyperSpeed |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case, USB-C dongle, USB-C charge cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone, Mac, Windows, Android tablet | |
| Supported Host Device OS | - | Windows 10, macOS | |
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | - | |
| Service & Support | - | Limited warranty - 1 year |
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