Complete technical specifications, details, expert ratings and review of EPOS I SENNHEISER ADAPT 561 II. Find out how your chosen headphones stack up against the competition and whether they are the ones that best meet your expectations with the headphone comparison feature.
design and dimensions sound quality microphone cable features battery and charging others
DESIGN AND DIMENSIONS EPOS I SENNHEISER ADAPT 561 II |
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Product Type | Headset - Bluetooth - wireless | |
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Series | ADAPT 500 Series | |
Weight | 232 g | Worse than 69 % of headphones rated. |
Earpad Material | Plush, textured fabric | |
Recommended Use | Portable electronics, computer | |
Bluetooth Range (Operating Distance) | 25 m | Better than 54 % of headphones rated. |
The EPOS I SENNHEISER ADAPT 561 II are wireless headphones. The wireless connection allows absolute freedom of movement and with that increases the comfort of using the headphones. This feature is very popular, especially when using headphones every day. The limiting factor of wireless headphones is a certain delay in the sound transmission between the source and the headphones (almost indistinguishable for a normal user), as well as the need to charge them (in the case of wired headphones, the headphones are recharged by connecting the cable itself). The headphones use the Bluetooth 5.0 technology for sound transmission. The transmission range offered is up to 25 m. The maximum range represents the maximum distance from the audio transmission source that the headphones can be used for wireless audio transmission. However, the maximum communication range can be affected by obstacles such as people, walls, etc.
The headphones are designed as on-ear. On-ear headphones are generally lighter. However, their design has fewer isolation capabilities, and therefore, for example, more sound can be let in and out compared to around-ear headphones. The weight of the headphones is 232 g.
SOUND QUALITY EPOS I SENNHEISER ADAPT 561 II |
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Headphones Form Factor | On-ear | |
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Headphones Technology | Dynamic | |
Ear Cups Type | Closed | |
Connectivity Technology | Wireless | |
Wireless Technology | Bluetooth | |
Bluetooth Version | Bluetooth 5.0 | Better than 90 % of headphones rated. |
Bluetooth Audio Codec | SBC, AAC | |
Active Noise Cancelling | Yes | Better than 92 % of headphones rated. |
Active Noise Cancelling Technology | Hybrid ANC | |
Sound Output Mode | Stereo | |
Sound Effects | EPOS Voice | |
Frequency Response | 20 - 20000 Hz | Better than 64 % of headphones rated. |
Total Harmonic Distortion (THD) | <0.3% | Better than 68 % of headphones rated. |
Impedance | 32 Ohm | |
Max Sound Pressure | 108 dB | |
Features | Audio prompts |
The sound quality can be affected by many factors. When it comes to frequency range, the wider it is, the more detail you will hear when listening. However, the range a person can perceive is highly individual. The average person is able to perceive frequencies in the range of 16 to 20 000 Hz. So the most common frequency range you will see on the market is 20 to 20,000 Hz. Lower frequencies up to approximately 256 Hz are considered bass frequencies. Therefore, the lower the bottom value is, the better the headphones will reproduce bass. Conversely, values from approximately 2 048 Hz upwards are treble. That is why headphones with a high upper value will provide a much more accurate reproduction of high notes. EPOS I SENNHEISER ADAPT 561 II offers a frequency range of 20 - 20000 Hz. Overall, these headphones can reproduce sound up to 108 dB. However, be careful. Repeatedly playing music continuously at really high volumes can damage your hearing.
The device connected to the headphones also plays a role most times. The lower impedance value (approximately 100 to 150 Ohms) is suitable for playback from mobile phones, laptops or other portable players that do not have a powerful enough amplifier. The lower impedance will ensure that the required volume level is achieved with less power, thus extending the life of the player. However, at the same time, with lower impedance, there is more distortion of the sound. Headphones with a higher impedance of around 250 Ohms and above are then more suitable for playback from really powerful signal sources or using a headphone amplifier, otherwise the sound coming out of them might not be loud enough. At the same time, higher-impedance headphones will also ensure less distortion in the sound. In the case of these headphones, the impedance reaches the 32 Ohm value. Total Harmonic Distortion of these headphones is Audio Output | Total Harmonic Distortion. The value quoted by the manufacturer is usually the average distortion over all reproducible frequency bands. This is not a crucial parameter to decide on when making a decision, but on the other hand, keep in mind that higher harmonic distortion can negatively affect sound quality.
The design of the headphones and their ear cups can also affect the quality of the audio output. The closed design does not allow ambient noise or sound from the headphones to flow outwards. Not only will you enjoy music in noisy environments, but you won't disturb anyone while enjoying listening session. The closed-back design makes the headphones suitable for the office or for travel.
For an even more undisturbed listening experience, the headphones have a special Active Noise Canceling feature.
MICROPHONE EPOS I SENNHEISER ADAPT 561 II |
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Form Factor | Headset microphone | |
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Type | Boom | |
Microphone Operation Mode | Beamforming, MEMS-directional | |
Frequency Response | 100 - 10000 Hz | Better than 58 % of headphones rated. |
Microphones Included | 2 | Better than 72 % of headphones rated. |
EPOS I SENNHEISER ADAPT 561 II has a boom–type microphone.
Show moreCABLE EPOS I SENNHEISER ADAPT 561 II |
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Cable Type | USB-C to USB-C cable - detachable |
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FEATURES EPOS I SENNHEISER ADAPT 561 II |
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Features | EPOS ActiveGard |
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BATTERY AND CHARGING EPOS I SENNHEISER ADAPT 561 II |
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Battery Type | Headset battery rechargeable | |
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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 | Better than 99 % of headphones rated. |
Charging Time | 220 min | Worse than 89 % of headphones rated. |
The standby battery life quoted by the manufacturer is 81 day.
Charging time is 220 min.
OTHERS 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 |
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