In depth comparison and review of Poly EncorePro 320, QD 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 EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Product Type | Headset - wired - Quick Disconnect | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | 300 Series | ADAPT 500 Series | |
| Weight | - | 232 g | |
| Earpad Material | - | Plush, textured fabric | |
| Recommended Use | Computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 25 m |
| SOUND QUALITY | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Audio Codec | - | 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 | 50 - 8000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER ADAPT 561 II offer a larger frequency range than Poly EncorePro 320, QD. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | 118 dB | 108 dB | |
| Diaphragm | 28 mm | - | |
| Features | - | Audio prompts | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Uni-directional | Beamforming, MEMS-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Controls | Mute, volume | - |
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| CABLE | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Cable Type | Headset cable | USB-C to USB-C cable - detachable |
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| FEATURES | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Features | - | EPOS ActiveGard |
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| BATTERY AND CHARGING | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| 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 | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
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| Connector Type | Headset (Quick Disconnect) | - |
|---|
| OTHERS | Poly EncorePro 320, QD | EPOS I SENNHEISER ADAPT 561 II |
|---|
| 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 | |
| Service & Support | - | Limited warranty - 2 years |
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