In depth comparison and review of JVC TINYPHONES HA-KD9BT and JVC HA S31M. 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 TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 120 g | 140 g | JVC TINYPHONES HA-KD9BT are lighter than JVC TINYPHONES HA-KD9BT headphones. |
| Design | Kids | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC | - | |
| Frequency Response | 20 - 20000 Hz | 10 - 26000 Hz | JVC HA S31M offer a larger frequency range than JVC TINYPHONES HA-KD9BT. |
| Sensitivity | 85 dB | - | |
| Impedance | 20 Ohm | 32 Ohm | |
| Magnet Material | Ferrite | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Form Factor | Built-in | - |
|---|
| REMOTE CONTROL | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Controls | Volume, power on/off | 4-button remote |
|---|
| CABLE | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Cable Type | USB charge cable - detachable | Headphones cable - single-sided - L shaped - 1.2 m | |
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Plated Connector | - | Gold |
| BATTERY AND CHARGING | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Battery Type | 1 x headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Life | 12 hour(s) | - | |
| Charging Time | 3 hour(s) | - | |
| Included Qty | 1 | - |
| CONNECTIONS | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Connector Type | Bluetooth USB (power only) (micro-USB) |
Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | JVC TINYPHONES HA-KD9BT | JVC HA S31M |
|---|
| Included Accessories | Stickers | - | |
|---|---|---|---|
| Compatibility | - | iPhone |
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