Side by side comparison and review of Poly Voyager 4220 (Office Series) and Sennheiser HD 350BT. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | Office Series | - | |
| Weight | 150 g | 238 g | Poly Voyager 4220 (Office Series) are lighter than Poly Voyager 4220 (Office Series) headphones. |
| Colour | - | Black | White | |
| Bluetooth Range (Operating Distance) | 91 m | - |
| SOUND QUALITY | Poly Voyager 4220 (Office 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 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| 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 | 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 Series). |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Voyager 4220 (Office 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 Series) | Sennheiser HD 350BT |
|---|
| Controls | Mute, volume, answer/end, next/previous track, redial | - |
|---|
| CABLE | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Cable Type | - | USB-C charge cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Battery Type | Headset battery rechargeable - Lithium Ion | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 360 mAh | 300 mAh | Poly Voyager 4220 (Office 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 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 Series) recharge faster than Poly Voyager 4220 (Office Series). |
| CONNECTIONS | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Connector Type | USB (24 pin USB-C) | - |
|---|
| OTHERS | Poly Voyager 4220 (Office Series) | Sennheiser HD 350BT |
|---|
| Software Certification | Certified for Microsoft Teams | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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