In depth comparison and review of JVC TINYPHONES HA-KD9BT and Poly Voyager 4220 Office (UC Series). 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 | Poly Voyager 4220 Office (UC Series) |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 120 g | 150 g | JVC TINYPHONES HA-KD9BT are lighter than JVC TINYPHONES HA-KD9BT headphones. |
| Design | Kids | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| 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 Poly Voyager 4220 Office (UC Series). |
| 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 | - | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 85 dB | 94 dB | Poly Voyager 4220 Office (UC Series) have higher sensitivity than JVC TINYPHONES HA-KD9BT. |
| Impedance | 20 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Magnet Material | Ferrite | - | |
| Features | - | SoundGuard Technology |
| MICROPHONE | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Controls | Volume, power on/off | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Cable Type | USB charge cable - detachable | - |
|---|
| FEATURES | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Battery Type | 1 x headphone battery rechargeable | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | 12 hour(s) | 12 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | - | 312 hours | |
| Charging Time | 3 hour(s) | 1.5 hour(s) | Poly Voyager 4220 Office (UC Series) recharge faster than JVC TINYPHONES HA-KD9BT. |
| Included Qty | 1 | - |
| CONNECTIONS | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Connector Type | Bluetooth USB (power only) (micro-USB) |
- |
|---|
| OTHERS | JVC TINYPHONES HA-KD9BT | Poly Voyager 4220 Office (UC Series) |
|---|
| Included Accessories | Stickers | Wireless headset system base, Bluetooth USB-C adapter |
|---|
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