In depth comparison and review of Poly Voyager 4220 Office (UC Series) and Sennheiser HD 350BT. 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) | Sennheiser HD 350BT |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 238 g | Poly Voyager 4220 Office (UC Series) are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Colour | - | Black | White | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sennheiser HD 350BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Sennheiser HD 350BT 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, AAC, aptX, apt-X LL | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 18 - 22000 Hz | Sennheiser HD 350BT offer a larger frequency range than Poly Voyager 4220 Office (UC Series). |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard Technology | - |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Uni-directional | Beamforming | |
| Frequency Response | - | 80 - 6000 Hz | |
| Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Cable Type | - | USB-C charge cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 360 mAh | 300 mAh | Poly Voyager 4220 Office (UC Series) have a higher battery capacity than Sennheiser HD 350BT. |
| Battery Life | 12 hour(s) | 30 hours | Sennheiser HD 350BT lasts longer on a single charge than the Poly Voyager 4220 Office (UC Series). |
| 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) | 2 hours | Poly Voyager 4220 Office (UC Series) recharge faster than Poly Voyager 4220 Office (UC Series). |
| OTHERS | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 350BT |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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