In depth comparison and review of Poly Voyager 4220 Office (UC Series) and EPOS I SENNHEISER ADAPT 165 USB II. 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 ADAPT 165 USB II |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 135.8 g | EPOS I SENNHEISER ADAPT 165 USB II are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Colour | - | Black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Foldable | - | Yes | EPOS I SENNHEISER ADAPT 165 USB II can be folded. |
| Connectivity Technology | Wireless | Wired | |
| 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 | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 115 dB | |
| Diaphragm | 32 mm | - | |
| Magnet Material | - | Neodymium | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Uni-directional | - | |
| Frequency Response | - | 100 - 8000 Hz | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | Volume, answer/end, microphone on/mute, hold, redial |
|---|
| CABLE | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Cable Type | - | Headset cable USB cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| 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 | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Connector Type | - | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Poly Voyager 4220 Office (UC Series) | EPOS I SENNHEISER ADAPT 165 USB II |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | - | |
|---|---|---|---|
| Software Certification | - | Optimised for UC | |
| Service & Support | - | Limited warranty - 2 years |
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