In depth comparison and review of Sennheiser HD 350BT 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 | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless | |
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Series | - | ADAPT 500 Series | |
Weight | 238 g | 232 g | EPOS I SENNHEISER ADAPT 561 II are lighter than Sennheiser HD 350BT headphones. |
Colour | Black | White | - | |
Earpad Material | - | Plush, textured fabric | |
Recommended Use | - | Portable electronics, computer | |
Bluetooth Range (Operating Distance) | - | 25 m |
SOUND QUALITY | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Headphones Form Factor | Full size | On-ear | |
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Headphones Technology | Dynamic | Dynamic | |
Ear Cups Type | Closed | Closed | |
Foldable | Yes | - | Sennheiser HD 350BT can be folded. |
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, AAC, aptX, apt-X LL | 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 | 18 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 350BT offer a larger frequency range than EPOS I SENNHEISER ADAPT 561 II. |
Total Harmonic Distortion (THD) | <0.3% | <0.3% | Both headphones have the same total harmonic distortion. |
Impedance | - | 32 Ohm | |
Max Sound Pressure | 108 dB | 108 dB | |
Features | - | Audio prompts |
MICROPHONE | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Form Factor | Built-in | Headset microphone | |
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Type | - | Boom | |
Microphone Operation Mode | Beamforming | Beamforming, MEMS-directional | |
Frequency Response | 80 - 6000 Hz | 100 - 10000 Hz | EPOS I SENNHEISER ADAPT 561 II offer a larger microphone frequency range than Sennheiser HD 350BT. |
Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
CABLE | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Cable Type | USB-C charge cable - detachable | USB-C to USB-C cable - detachable |
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FEATURES | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Features | - | EPOS ActiveGard |
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BATTERY AND CHARGING | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Battery Type | Headphone battery rechargeable - lithium polymer | Headset battery rechargeable | |
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Battery Capacity | 300 mAh | - | |
Battery Life | 30 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 |
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Standby Time | - | 81 day | |
Charging Time | 2 hours | 220 min | Sennheiser HD 350BT recharge faster than Sennheiser HD 350BT. |
OTHERS | Sennheiser HD 350BT | EPOS I SENNHEISER ADAPT 561 II |
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Included Accessories | - | Carrying case, BTD 800 USB-C dongle, USB-C to USB-C cable | |
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Software Certification | - | Zoom Certified, Certified for Microsoft Teams, Optimised for UC, Optimised for Google Meet | |
Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |