In depth comparison and review of Poly Voyager 4220 Office (UC Series) and EPOS I SENNHEISER C20. 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 | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Series | UC Series | C-series | |
| Height | - | 20 cm | |
| Width | - | 16.5 cm | |
| Depth | - | 5.8 cm | |
| Weight | 150 g | 200 g | Poly Voyager 4220 Office (UC Series) are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Colour | - | Black | |
| Bluetooth Range (Operating Distance) | 30 m | 25 m | Poly Voyager 4220 Office (UC Series) have a greater operating distance than EPOS I SENNHEISER C20. |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | 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 | 20 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | - | 3% | |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard Technology | EPOS BrainAdapt Technology |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Uni-directional | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | - |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headset battery rechargeable | |
|---|---|---|---|
| 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 | 300 hours | Poly Voyager 4220 Office (UC Series) have longer standby time than EPOS I SENNHEISER C20. |
| Charging Time | 1.5 hour(s) | 2 hour(s) | Poly Voyager 4220 Office (UC Series) recharge faster than Poly Voyager 4220 Office (UC Series). |
| OTHERS | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER C20 |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | Carrying case, charging cable, BTD 800 USB dongle | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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