In depth comparison and review of JVC TINYPHONES 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 TINYPHONES 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 TINYPHONES HA-KD7 are lighter than JVC TINYPHONES HA-KD7 headphones. |
| Design | Kids | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | Yes | - | |
| 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) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 23000 Hz | 20 - 20000 Hz | JVC TINYPHONES HA-KD7 offer a larger frequency range than Poly Voyager 4220 Office (UC Series). |
| Max Input Power | 200 mW | - | |
| Sensitivity | 85 dB/mW | 94 dB | Poly Voyager 4220 Office (UC Series) have higher sensitivity than JVC TINYPHONES HA-KD7. |
| Impedance | - | 32 Ohm | |
| Diaphragm | 30 mm | 32 mm | Poly Voyager 4220 Office (UC Series) have a thicker diaphragm than JVC TINYPHONES HA-KD7. |
| Magnet Material | Ferrite | - | |
| Features | - | SoundGuard Technology |
| MICROPHONE | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Controls | - | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Cable Type | Headphones cable - 0.8 m | - | |
|---|---|---|---|
| Cable Length | 0.8 m | - | |
| Plated Connector | Nickel | - |
| FEATURES | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | JVC TINYPHONES 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 TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | JVC TINYPHONES HA-KD7 | Poly Voyager 4220 Office (UC Series) |
|---|
| Included Accessories | Decorative stickers | Wireless headset system base, Bluetooth USB-C adapter |
|---|
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
