Side by side comparison and review of JVC HA FX21BT and Razer Hammerhead True Wireless Earbuds. 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 | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 11 g | - | |
| Colour | Black | White | Mercury | |
| 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 Earbuds |
|---|
| 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 Earbuds 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 Earbuds have a thicker diaphragm than JVC HA FX21BT. |
| Magnet Material | Neodymium | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| 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 Earbuds |
|---|
| 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 Earbuds |
|---|
| Cable Type | USB charge cable | USB-C charge cable - detachable |
|---|
| FEATURES | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| Features | - | Touch control |
|---|
| BATTERY AND CHARGING | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| 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 Earbuds. |
| 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 Earbuds recharge faster than JVC HA FX21BT. |
| CONNECTIONS | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| Connector Type | USB (power only) | - |
|---|
| OTHERS | JVC HA FX21BT | Razer Hammerhead True Wireless Earbuds |
|---|
| 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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