In depth comparison and review of Poly - Plantronics Backbeat Pro 2 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 - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | - | ADAPT 500 Series | |
| Weight | 289 g | 232 g | EPOS I SENNHEISER ADAPT 561 II are lighter than Poly - Plantronics Backbeat Pro 2 headphones. |
| Colour | Black | - | |
| Earpad Material | - | Plush, textured fabric | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 100 m | 25 m | Poly - Plantronics Backbeat Pro 2 have a greater operating distance than EPOS I SENNHEISER ADAPT 561 II. |
| SOUND QUALITY | Poly - Plantronics Backbeat Pro 2 | 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 4.0 EDR | Bluetooth 5.0 | EPOS I SENNHEISER ADAPT 561 II have a more advanced version of Bluetooth than Poly - Plantronics Backbeat Pro 2. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | SBC, AAC | |
| Active Noise Cancelling | Yes | Yes | Both headphones 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% | |
| Sensitivity | 93 dB | - | |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 40 mm | - | |
| Features | - | Audio prompts |
| MICROPHONE | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Beamforming, MEMS-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
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| Controls | Volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Cable Type | USB charge cable Headphones cable |
USB-C to USB-C cable - detachable |
|---|
| FEATURES | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life | 24 hour(s) | - | |
| 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 | 3 hours | 220 min | Poly - Plantronics Backbeat Pro 2 recharge faster than Poly - Plantronics Backbeat Pro 2. |
| WIRELESS LINK | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
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| Transmission Range | 100 m | - |
|---|
| CONNECTIONS | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Poly - Plantronics Backbeat Pro 2 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Included Accessories | Travel pouch | 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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