In depth comparison and review of EPOS I SENNHEISER ADAPT 561 II and Sennheiser MOMENTUM 4. 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 | Sennheiser MOMENTUM 4 |
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Product Type | Headset - Bluetooth - wireless | Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C | |
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Series | ADAPT 500 Series | - | |
Height | - | 19.5 cm | |
Width | - | 18 cm | |
Depth | - | 4.63 cm | |
Weight | 232 g | 293 g | EPOS I SENNHEISER ADAPT 561 II are lighter than EPOS I SENNHEISER ADAPT 561 II headphones. |
Colour | - | Black | White | |
Earpad Material | Plush, textured fabric | Synthetic leather | |
Recommended Use | Portable electronics, computer | Portable electronics | |
Bluetooth Range (Operating Distance) | 25 m | - | |
High-Resolution Audio | - | Yes |
SOUND QUALITY | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Headphones Form Factor | On-ear | Full size | |
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Headphones Technology | Dynamic | Dynamic | |
Ear Cups Type | Closed | Closed | |
Adjustable Headband | - | Yes | |
Foldable | - | Yes | Sennheiser MOMENTUM 4 can be folded. |
Connectivity Technology | Wireless | Wireless, wired | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.2 | Sennheiser MOMENTUM 4 have a more advanced version of Bluetooth than EPOS I SENNHEISER ADAPT 561 II. |
Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
Bluetooth Audio Codec | SBC, AAC | SBC, AAC, aptX, aptX Adaptive | |
Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
Active Noise Cancelling Technology | Hybrid ANC | Adaptive Hybrid ANC | |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | EPOS Voice | Signature Sound | |
Frequency Response | 20 - 20000 Hz | 6 - 22000 Hz | Sennheiser MOMENTUM 4 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. |
Sensitivity | - | 106 dB | |
Impedance | 32 Ohm | 60 Ohm | |
Max Sound Pressure | 108 dB | - | |
Diaphragm | - | 42 mm | |
Features | Audio prompts | Smart Pause, Crystal-clear Calls |
MICROPHONE | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Form Factor | Headset microphone | Built-in | |
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Type | Boom | - | |
Microphone Operation Mode | Beamforming, MEMS-directional | MEMS-directional | |
Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 microphone can cancel out ambient noise. |
Frequency Response | 100 - 10000 Hz | 50 - 10000 Hz | Sennheiser MOMENTUM 4 offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 561 II. |
Microphones Included | 2 | 4 | Sennheiser MOMENTUM 4 have a built-in microphone. |
REMOTE CONTROL | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Controls | - | Volume, play/pause, equaliser preset |
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CABLE | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Cable Type | USB-C to USB-C cable - detachable | Headphones cable - detachable - L shaped / sub-mini phone 2.5 mm 4-pole - 1.2 m USB-C to USB-A cable - detachable - 1.2 m |
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Cable Length | - | 1.2 m | |
Detachable Cable | - | Yes |
FEATURES | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Features | EPOS ActiveGard | Transparent Hearing mode, auto power on/off | |
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Sensors | - | Touch sensor | |
Additional Functions | - | Smart Touch Control, USB-C charging port |
BATTERY AND CHARGING | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 700 mAh | |
Battery Life | - | 60 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 |
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Standby Time | 81 day | - | |
Charging Time | 220 min | 2 hour(s) | Sennheiser MOMENTUM 4 recharge faster than EPOS I SENNHEISER ADAPT 561 II. |
Included Qty | - | 1 |
CONNECTIONS | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Connector Type | - | Headphones (sub-mini phone 2.5 mm 4-pole) USB (24 pin USB-C) |
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OTHERS | EPOS I SENNHEISER ADAPT 561 II | Sennheiser MOMENTUM 4 |
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Included Accessories | Carrying case, BTD 800 USB-C dongle, USB-C to USB-C cable | Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m) | |
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Software Included | - | Sennheiser Smart Control | |
Software Certification | Zoom Certified, Certified for Microsoft Teams, Optimised for UC, Optimised for Google Meet | - | |
Compliant Standards | - | Bluetooth Class 1 | |
Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |