In depth comparison and review of Poly Voyager 4220 UC and EPOS I SENNHEISER ADAPT 561 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 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Product Type | Headset - Bluetooth - wireless | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | UC Series | ADAPT 500 Series | |
| Weight | 150 g | 232 g | Poly Voyager 4220 UC are lighter than Poly Voyager 4220 UC headphones. |
| Earpad Material | - | Plush, textured fabric | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 30 m | 25 m | Poly Voyager 4220 UC have a greater operating distance than EPOS I SENNHEISER ADAPT 561 II. |
| SOUND QUALITY | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| 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) | - | |
| Bluetooth Audio Codec | SBC, mSBC | SBC, AAC | |
| Active Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 561 II are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard DIGITAL Technology | Audio prompts |
| MICROPHONE | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Form Factor | Headset microphone | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Uni-directional | Beamforming, MEMS-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
| REMOTE CONTROL | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant | - |
|---|
| CABLE | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Cable Type | - | USB-C to USB-C cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Features | Voice alerts | EPOS ActiveGard | |
|---|---|---|---|
| Intelligent Assistant | Alexa | - |
| BATTERY AND CHARGING | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 360 mAh | - | |
| Battery Life | 15 hour(s) | - | |
| Battery Life Details | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
Continuous playback (noise cancelling OFF): up to 46 hours Continuous talk (noise cancelling OFF): up to 41 hours Continuous playback (noise cancelling ON): up to 24 hours Continuous talk (noise cancelling ON): up to 24 hours |
|
| Standby Time | 312 hours | 81 day | EPOS I SENNHEISER ADAPT 561 II have longer standby time than Poly Voyager 4220 UC. |
| Charging Time | 1.5 hour(s) | 220 min | Poly Voyager 4220 UC recharge faster than Poly Voyager 4220 UC. |
| CONNECTIONS | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Connector Type | Wireless adapter (4 PIN USB Type A) | - |
|---|
| OTHERS | Poly Voyager 4220 UC | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Included Accessories | Bluetooth USB adapter, charging stand | Carrying case, BTD 800 USB-C dongle, USB-C to USB-C cable | |
|---|---|---|---|
| Software Certification | - | Zoom Certified, Certified for Microsoft Teams, Optimised for UC, Optimised for Google Meet | |
| Service & Support | - | Limited warranty - 2 years |
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