The Audio-Technica ATH-M50xBT inherits the legendary M50x studio sound quality with a Bluetooth wireless technology which delivers a great listening experience. The sounds quality is exceptionally clear with accurate and deep bass response. Its high-quality sound and comfortable, versatile design make it a perfect choice for sound artists and content creators. Large 45mm Drivers It employs large-aperture 45mm drivers with rare-earth magnets and copper-clad aluminium wire (CCAW) voice coils which produces an excellent sound detail. The CCAW coils provide an extended frequency range of 15 Hz to 28 kHz making sound clearer and every note distinctly audible. Battery Life It is equipped with an internal battery which enables you to use the headphones for up to 40 hours. A charging USB cable is included which allows you to recharge the headphones effortlessly and rapidly. Great Controls and Connection You can easily adjust the volume, control music playback and handle phone calls with the added mic and button controls. In addition, you are able to benefit from the voice assistant technology with the featured touch control in the earcup. The ATH-M50xBT is compatible with IOS and Android devices via the Audio-Technica Connect app. Smart Design The headphones have a solid construction with professional grade earpads and 90° swivelling earcups. The swivelling earcups allow for easy one-ear monitoring, making it easier for you to multi-task. It also comes with a 1.2m cable featuring mic/controls which provides you a wired connection when required.