ATH\-M20xBT wireless over\-ear headphones deliver the same sonic signature as the wired model with full\-range high\-fidelity audio and enhanced bass. They also give you the convenience of a Bluetooth wireless connection and have multipoint pairing capability to connect wirelessly to two devices at once. **Features** \- Wireless and included cable for optional wired connection \- Up to 60 hours of continuous use on a full charge up to 3 hours of use on a 10-minute rapid charge (via USB\-C connection) \- Microphone and buttons built into left earcup to easily control calls music playback and volume/mute \- Pro\-grade earpad and headband material **Content + Care** \- ATH\-M20xBT Headphones \- USB charging cable (USB Type-A / USB Type-C) \- Cable (1.2 m (3.9’) /3.5 mm (1/8") gold-plated stereo mini\-plug **Size** \- Charging Time: Approx. 4 hours \- Operating Time: Continuous transmission time (music playback): Max. approx. 60 hours \- Weight: Approx. 7.6 oz \- Imported