In depth comparison and review of JVC HA FX21BT and Razer Hammerhead True Wireless. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 11 g | - | |
| Colour | Black | White | - | |
| Protection | Splashproof, sweat-resistant | Splashproof, waterproof, IPX4 | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 EDR | Razer Hammerhead True Wireless have a more advanced version of Bluetooth than JVC HA FX21BT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC | SBC, AAC | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 8 mW | |
| Sensitivity | - | 91 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | 8.2 mm | 13 mm | Razer Hammerhead True Wireless have a thicker diaphragm than JVC HA FX21BT. |
| Magnet Material | Neodymium | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 300 - 5000 Hz | |
| Sensitivity | - | -42 dB | |
| Signal-To-Noise Ratio | - | 55 dB |
| REMOTE CONTROL | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Controls | Power on/off, volume control, 3-button remote | Power on/off, answer/end, play/pause, next/previous track, reject call, skip track, pair mode, voice assistant |
|---|
| CABLE | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Cable Type | USB charge cable | USB-C charge cable - detachable |
|---|
| FEATURES | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Features | - | Touch control |
|---|
| BATTERY AND CHARGING | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 5 hour(s) | 3 hour(s) | JVC HA FX21BT lasts longer on a single charge than the Razer Hammerhead True Wireless. |
| Battery Life Details | - | Continuous playback: up to 3 hours Continuous playback (with included charging case): up to 13 hours |
|
| Charging Time | 2.5 hour(s) | 1.5 hour(s) | Razer Hammerhead True Wireless recharge faster than JVC HA FX21BT. |
| CONNECTIONS | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Connector Type | USB (power only) | - |
|---|
| OTHERS | JVC HA FX21BT | Razer Hammerhead True Wireless |
|---|
| Included Accessories | 2 pairs of low rebound earpieces (small, medium) | Wrist strap, charging case, silicone ear tip | |
|---|---|---|---|
| Compatibility | - | iPhone, iPad, iPod, Android phone | |
| Service & Support | - | Limited warranty - 2 years |
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