In depth comparison and review of EPOS I SENNHEISER ADAPT 561 II and Poly EncorePro 520V. 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 EncorePro 520V |
|---|
| Product Type | Headset - Bluetooth - wireless | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | ADAPT 500 Series | EncorePro 500 series | |
| Height | - | 6.7 cm | |
| Width | - | 11.1 cm | |
| Depth | - | 14.9 cm | |
| Weight | 232 g | 74 g | Poly EncorePro 520V are lighter than EPOS I SENNHEISER ADAPT 561 II headphones. |
| Colour | - | Black | |
| Earpad Material | Plush, textured fabric | Artificial leather | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Audio Codec | SBC, AAC | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | SoundGuard DIGITAL | |
| Sound Output Mode | Stereo | - | |
| Sound Effects | EPOS Voice | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | 108 dB | - | |
| Diaphragm | - | 5.6 mm | |
| Signal-To-Noise Ratio | - | 50 dB | |
| Features | Audio prompts | - |
| MICROPHONE | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Beamforming, MEMS-directional | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 520V microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 20 - 16000 Hz | Poly EncorePro 520V offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 561 II. |
| Sensitivity | - | 40 dB | |
| Sensitivity Margin | - | +/- 3dB | |
| Microphones Included | 2 | - |
| CABLE | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Cable Type | USB-C to USB-C cable - detachable | - | |
|---|---|---|---|
| Cable Length | - | 78.5 cm |
| FEATURES | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Features | EPOS ActiveGard | Boom mic length 135mm, 290° rotatable microphone |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Battery Type | Headset battery rechargeable | - | |
|---|---|---|---|
| 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 |
- | |
| Standby Time | 81 day | - | |
| Charging Time | 220 min | - |
| CONNECTIONS | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Connector Type | - | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | EPOS I SENNHEISER ADAPT 561 II | Poly EncorePro 520V |
|---|
| Included Accessories | 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 | Certified for Skype for Business, UC certified | |
| Supported Host Device OS | - | macOS, Windows | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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