Audio Technica BT BK ( EX ) BLACK WS990 Black

In addition to providing high-fidelity wireless audio, the ATH-WS990BT headphones also feature noise-cancelling and hear-through functionality that gives you greater control over your interaction with the outside world and its noise.
The headphones’ internal lithium polymer battery provides up to 30 hours of continuous wireless use (up to 1,000 hours in standby mode) and can be recharged using the included 30 cm (1.0') USB charging cable.

FEATURES ;

• Bluetooth wireless technology with mic and controls built into the earcup for answering/ending calls, controlling music & video playback and adjusting volume on connected devices
• Supports aptX® sound-improvement technology for high-quality audio performance over a Bluetooth transmission
• Active noise-cancelling technology reduces environmental noise
• Hear-through function allows voices (e.g., announcements at train/bus stations and airports; conversations) to be heard through the headphones
• Internal battery provides up to 30 hours of continuous wireless use (1,000 hours on standby) on a full charge
• 53 mm Deep Motion Drivers provide extremely rich, high-fidelity bass sound
• Exclusive dual-layer, memory-foam earpads, consisting of a firm internal layer and a soft outer layer, provide increased isolation
• Large, high-flux magnetic circuit provides wireless audio reproduction with deep bass and amazing resolution.
• Aluminum housings reduce unwanted resonance
• Included 1.2 m (3.9') cable with 3.5 mm (1/8") stereo mini-plug provides a wired connection when wireless operation is prohibited (e.g., in airplanes or hospitals), when battery power is low, or when Hi-Res Audio is desired
• Includes 30 cm (1.0') USB charging cable and carrying pouch
• Fold-flat design for easy storage

 

Technical Specification

ATH-WS990BT

Headphones
Type	Dynamic
Driver Diameter	53 mm
Frequency Response	5 – 40,000 Hz
Sensitivity	107 dB/mW, when using noise-cancelling* 101 dB/mW, when not using noise-cancelling*
Impedance	150 ohms, when using noise-cancelling* 30 ohms, when not using noise-cancelling*
Battery	DC3.7 V lithium polymer rechargeable battery
Battery Life	Max. 25 hours (when using Bluetooth and noise-cancellation)** Max. 30 hours (when using Bluetooth only)** Max. 35 hours (with using noise-cancelling only)** Max. 1,000 hours (standby)**
Weight	300 g (10.6 oz)
Charging Time	Approx. 5 hours (for 0-100% charge)**
Cable	1.2 m (3.9')
Connector	3.5 mm (1/8") stereo mini-plug, L-type
Microphone Type	Condenser
Microphone Sensitivity	-44 dB (1V/Pa at 1 kHz)
Microphone Frequency Response	50 – 4,000 Hz
Microphone Polar Pattern	Omnidirectional
Accessories Included	30 cm (1.0') USB charging cable, pouch
Notes	Compatible Bluetooth Profiles: A2DP, AVRCP, HFP, HSP Support Codec: aptX, AAC, SBC *When using a wired connection. **The above figures depend on operating conditions.
Bluetooth®
Bluetooth® Version	Bluetooth Version 4.1
Output	Bluetooth Specification Power Class 2
Operating Range	Line of sight - approx. 10 m (33')