In depth comparison and review of EPOS I SENNHEISER ADAPT 561 II and Poly Voyager Surround 85. 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 | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Product Type | Headset - Bluetooth - wireless | Headset - Bluetooth - wireless - USB-C via Bluetooth adapter | |
|---|---|---|---|
| Series | ADAPT 500 Series | Voyager Surround 80 series | |
| Height | - | 18.1 cm | |
| Width | - | 19.1 cm | |
| Depth | - | 7.7 cm | |
| Weight | 232 g | 275 g | EPOS I SENNHEISER ADAPT 561 II are lighter than EPOS I SENNHEISER ADAPT 561 II headphones. |
| Colour | - | Black | |
| Earpad Material | Plush, textured fabric | Artificial leather | |
| Recommended Use | Portable electronics, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 25 m | 30 m | Poly Voyager Surround 85 have a greater operating distance than EPOS I SENNHEISER ADAPT 561 II. |
| SOUND QUALITY | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Headphones Form Factor | On-ear | Over ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.3 | Poly Voyager Surround 85 have a more advanced version of Bluetooth than EPOS I SENNHEISER ADAPT 561 II. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Audio/Video Distribution Transport Protocol (AVDTP) | |
| Bluetooth Audio Codec | SBC, AAC | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | Adjustable noise cancellation | |
| Sound Output Mode | Stereo | - | |
| Sound Effects | EPOS Voice | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Sensitivity | - | 132 dB | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | 108 dB | - | |
| Diaphragm | - | 40 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Poly Voyager Surround 85 have the ability to connect to multiple devices simultaneously. |
| Features | Audio prompts | SoundGuard DIGITAL Technology, Smart Sensor Technology |
| MICROPHONE | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Beamforming, MEMS-directional | - | |
| Frequency Response | 100 - 10000 Hz | 20 - 16000 Hz | Poly Voyager Surround 85 offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 561 II. |
| Sensitivity | - | -37 dB | |
| Microphones Included | 2 | 10 | Poly Voyager Surround 85 have a built-in microphone. |
| REMOTE CONTROL | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause |
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| CABLE | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Cable Type | USB-C to USB-C cable - detachable | USB-C to mini-phone 3.5 mm cable USB-C charge cable - detachable |
|---|
| FEATURES | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Features | EPOS ActiveGard | - |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Battery Type | Headset battery rechargeable | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 24 hours | |
| Battery Life Details | 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 |
Continuous playback: up to 24 hours Continuous talk: up to 21 hours |
|
| Standby Time | 81 day | - | |
| Charging Time | 220 min | 1 hours | Poly Voyager Surround 85 recharge faster than EPOS I SENNHEISER ADAPT 561 II. |
| OTHERS | EPOS I SENNHEISER ADAPT 561 II | Poly Voyager Surround 85 |
|---|
| Included Accessories | Carrying case, BTD 800 USB-C dongle, USB-C to USB-C cable | Carrying case, USB charging cable, charging stand, USB-C to USB-A adapter, USB-C to audio cable, BT700 Bluetooth USB-C adapter | |
|---|---|---|---|
| Software Included | - | Poly Lens | |
| Compatibility | - | Mac, Windows | |
| Software Certification | Zoom Certified, Certified for Microsoft Teams, Optimised for UC, Optimised for Google Meet | Certified for Microsoft Teams, Certified for Microsoft Teams Open Office, UC certified | |
| Supported Host Device OS | - | macOS, Android, iOS, Windows | |
| Service & Support | Limited warranty - 2 years | - |
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