Detailed comparison and review of JVC TINYPHONES HA-KD9BT and JVC HA S31BT. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 120 g | 158 g | JVC TINYPHONES HA-KD9BT are lighter than JVC TINYPHONES HA-KD9BT headphones. |
| Design | Kids | - | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Foldable | - | Yes | JVC HA S31BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.1 | JVC TINYPHONES HA-KD9BT have a more advanced version of Bluetooth than JVC HA S31BT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC | SBC | |
| Sound Effects | - | Dynamic Bass Boost (DBB) | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 85 dB | - | |
| Impedance | 20 Ohm | 32 Ohm | |
| Diaphragm | - | 30.7 mm | |
| Magnet Material | Ferrite | Ferrite |
| MICROPHONE | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Form Factor | Built-in | Built-in |
|---|
| REMOTE CONTROL | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Controls | Volume, power on/off | 4-button remote |
|---|
| CABLE | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Cable Type | USB charge cable - detachable | USB charge cable - detachable |
|---|
| BATTERY AND CHARGING | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Battery Type | 1 x headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 12 hour(s) | 17 hour(s) | JVC HA S31BT lasts longer on a single charge than the JVC TINYPHONES HA-KD9BT. |
| Charging Time | 3 hour(s) | 3 hour(s) | The charging of both headphones last the same time. |
| Included Qty | 1 | - |
| CONNECTIONS | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Connector Type | Bluetooth USB (power only) (micro-USB) |
USB (power only) (micro-USB) |
|---|
| OTHERS | JVC TINYPHONES HA-KD9BT | JVC HA S31BT |
|---|
| Included Accessories | Stickers | - |
|---|
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