In depth comparison and review of JVC HA KD7 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 HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 110 g | 150 g | JVC HA KD7 are lighter than JVC HA KD7 headphones. |
| Colour | Pink violet | - | |
| Design | Kids | - | |
| Recommended Use | Home audio | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Volume Limiting Function | Yes | - | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 15 - 23000 Hz | 20 - 20000 Hz | JVC HA KD7 offer a larger frequency range than Poly Voyager 4220 Office (UC Series). |
| Max Input Power | 200 mW | - | |
| Sensitivity | - | 94 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | 85 dB | - | |
| Diaphragm | 30 mm | 32 mm | Poly Voyager 4220 Office (UC Series) have a thicker diaphragm than JVC HA KD7. |
| Magnet Material | Ferrite | - | |
| Features | - | SoundGuard Technology |
| MICROPHONE | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Controls | - | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Cable Type | Headphones cable - straight - 80 cm | - | |
|---|---|---|---|
| Cable Length | 80 cm | - | |
| Plated Connector | Nickel | - |
| FEATURES | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Battery Type | - | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | - | 12 hour(s) | |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | - | 312 hours | |
| Charging Time | - | 1.5 hour(s) |
| CONNECTIONS | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Connector Type | (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | JVC HA KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Included Accessories | Stickers | Wireless headset system base, Bluetooth USB-C adapter |
|---|
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