![background image](http://html1.mh-extra.com/html/sennheiser/epos-adapt-660/epos-adapt-660_user-manual_1241198032.webp)
ADAPT 660
Bluetooth
®
headset
Specifications
31
Specifications
Headset - General
Wearing style
Over-ear, double-sided headband
Dimensions (W x H x D)
63 x 136 x 174 mm / 2.48 x 5.35 x 6.85 in
Weight
227 g / 8 oz
Transducer principle
Dynamic, closed
Connectivity
• Bluetooth 5.0
• audio cable (2.5 mm and 3.5 mm jack plugs)
• USB cable with micro-USB connector
Supported Bluetooth profiles
Hands-Free Profile (HFP), Headset Profile (HSP), Audio Video Remote Control
Profile (AVRCP), Advanced Audio Distribution Profile (A2DP)
Supported codecs
AptX™, AptX™ low latency, AAC, SBC
Rechargeable battery (built-in)
Lithium Polymer / 3.7 V DC / 730 mAh
Charging time
3 hours
Standby time
Up to 15 days
Battery time
Up to 30 hours (ANC on, Bluetooth off)
Range
Up to 25 m / 82 feet (device dependent)
Headset - Audio
Speaker frequency response
17 Hz to 23,000 Hz
Sound pressure level (SPL)
Max. 118 dB limited by EPOS ActiveGard
®
Total harmonic distortion (THD)
< 0.5% (1 kHz, 100 dB)
Noise cancellation
Hybrid adaptive ANC technology with 4 microphones
Microphone type
Digital MEMs beamforming microphone (3 microphones)
Microphone frequency response
150 Hz to 6,800 Hz
Impedance
active: 490 Ω / passive: 46 Ω
Contact pressure
3 N
Total noise attenuation
Up to 30 dB
Dongle BTD 800 USB
Dimensions (W x H x D)
22 x 16 x 6 mm / 0.87 x 0.63 x 0.24 in
Weight
2 g / 0.07 oz / 0.004 lbs
Connector
USB-A plug
Connectivity
Bluetooth 4.2
Output power
max. 8 dBm (EIRP)
Dongle BTD 800 USB-C
Dimensions (W x H x D)
27.5 x 23.5 x 7.5 mm / 1.05 x 0.93 x 0.30 in
Weight
2.8 g / 1.0 oz / 0.006 lbs
Connector
USB-C plug
Connectivity
Bluetooth 4.2
Output power
max. 11 dBm (EIRP)