Closed-back dynamic Bluetooth headphones bring the coveted sonic signature of the critically acclaimed ATH-M50x professional studio headphones to a wireless, on-the-go design. M50xBT contain the latest Bluetooth 5.0 technology, allowing you to pair with any device seamlessly. The ATH-M50xBT harnesses the legendary ATH-M50x studio sound for an exhilarating wireless listening experience, with exceptional clarity and deep, accurate bass response. Features 45 mm large-aperture drivers with rare-earth magnets and copper-clad aluminium wire voice coils. Manage your volume, music and calls on the move with handy buttons built in to the M50xBT headphones. When you've finished listening, 90-degree swivelling ear cups and a collapsible design make the headphones easy to pack away. Driver diameter: 45 mm. Voice coil: CCAW (Copper-clad aluminum wire). Frequency response: 15 - 28,000 Hz. Sensitivity: 99 dB. Impedance: 38 ohms. Battery: DC 3,7 V lithium polymer rechargeable battery. Battery life: Approx. 40 hours continuous use. Charging time: approx. 7 hours (for 0-100% charge). Weight: 310 g without cable and connector. Cable: detachable 1,2 m iS controller cable with mic. Connector: 3,5 mm stereo mini-plug. Accessories included: 30 cm USB charging cable, protective pouch. Type (microphone): condenser. Sensitivity (microphone): -42 dB (1V/Pa at 1 kHz). Frequency response (microphone): 80 - 10,000 Hz. Polar pattern (microphone): omnidirectional. Input jack: Micro USB Type B. Communication system: Bluetooth Version 5.0. Maximum communication range: approx. 10 m. Compatible Bluetooth profiles: A2DP, AVRCP, HFP, HSP. Support codec: aptX, AAC, SBC. Colour: Black