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EPOS | Sennheiser Adapt 660 MS

Over-ear Bluetooth ANC headset with BTD 800 USB dongle and carry case

Internal ref: SEADP660
Key features
  • High-quality wireless Duo headset
  • With Bluetooth and USB-A connectivity
  • Compatible with computer, mobile, and tablet
  • ANC technology
  • Ultra-comfortable ear cushions
  • Optimized for Microsoft Teams
  • Standby time: 15 days
£260.39 Incl. VAT
Only 23 units in stock
Delivery date with Express Shipping: 16/08/2022 If order placed before 1PM
2 years of manufacturer warranty Subject to manufacturer conditions
Pay in 3 interest-free payments of See more
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Product description

Comfortable and ergonomic design

The EPOS Adapt 660 headsets are of high quality, elegant design, but above all comfortable to wear all day, even in the office. With its lightweight of 227 grams, it is stable and well distributed over several contact points to ensure a good fit. The carrying system with adjustable headband allows it to be adapted to the morphology of each user and the rotating system allows it to be worn according to your preference, with all the usual comfort.

Black in color, the ADAPT 660 feature a matte finish with leatherette accents on the headband and the circumaural (over-the-ear) ear cups. Touch-sensitive controls are located on the outer panels of the cups, although you can not notice them, as the panels are blank.

Professional and dynamic sound quality

The Active Noise Cancellation Hybrid design allows you to maintain full awareness of your environment when needed. The ear cushions also provide passive isolation against unwanted background noise for perfect listening quality on calls or with your music.

The EPOS Adapt 660 guarantees you a perfect audio experience because of three-voice pick-up microphones integrated into the headset. These microphones are also equipped with a noise cancellation system for use in the noisiest environments.

Powered by EPOS AI, the headphones are adaptive to speech and they study the surrounding environment through machine learning.

Essential and versatile functions

Thanks to its multi-connectivity, you can use it with a wide range of supports, via the multipoint Bluetooth connectivity (up to 8 registered devices and 2 when used simultaneously), the USB dongle or the wired audio cable. The EPOS Adapt 660 headset allows you to connect to all your environments!

You can also accept or reject calls by holding your finger down for a second and tapping twice to place them on hold.

In a call, the microphone is muted or unmuted by moving forward or backward. By double-tapping the headphones, you can disable ANC and muffle the music, and put them into Transparent Hearing mode, during which the ambient mics pick up your voice and your surroundings so that you can talk with ease.

Compatible with all softphones

Thanks to the UC function, it can be easily used with all softphones on the market and features plug & play installation for Microsoft Teams. This feature is astonishingly helpful for those users who rely heavily on Microsoft Teams in their work. Now I can quickly connect to Teams with just a button press.

The EPOS ADAPT 660 have a unique feature set including an exclusive button that launches Microsoft Teams. Powered by EPOS AI, the headphones can adapt to speech and they study the surrounding environment through machine learning.

With Voice assistant

You also have a voice assistant built into your headset, optimized for "Alexa". Simplified management in one word.



  • Duo UC wireless headphones
  • Optimized for Microsoft teams
  • Mute function on earmuff
  • ActiveGuard sound protection
  • Charging time: 3 hours
  • Standby time: up to 15 days
  • Type of support: headband
  • ANC technology
  • Connections: USB-A dongle
  • Charging cable: USB-A
  • Audio cable: Jack 2.5mm / 3.5mm
  • Weight: 238 grams

In the box

  • 1 x headset EPOS Adapt 660 MS
  • 1 x USB-A charging cable
  • 1 x USB-A dongle
  • 1 x Jack 2.5 and 3.5 mm audio cable
  • 1 x airplane adapter
  • 1 x carrying bag
  • 1 x user manual


EPOS - Adapt 660 MS - Quick Guide (EN)
EPOS - Adapt 660 MS - Data sheet (EN)

Product Specs.

More Information
Manufacturer part #1000200
Warranty2 years
Acoustic protectionActiveGuard
RangeUp to 25m
Recharge time3 hours
Standby time / Talk time15 days/30 hours
Weight227 Gr
Headset typeWireless Bluetooth
CompatibilityFor PC/Mac + mobiles
Corded or cordlessWireless
ConnectivityFor USB and Bluetooth
Mono/duoDuo headsets
Wearing styleHeadband
Ear cushionsWith leatherette Ear cushions
Microphone BoomWith short microphone boom
Noise CancellingWith noise cancelling
Suitable for intensive useFor intensive use
MuteWith mute key
Volume controlOn headset volume control
MAC compatibleCompatible with MAC
Optimized LyncOptimized for Lync
Softphone compatibleCompatible with softphones