The M20xBT headphones provide up to 60 hours of continuous use on a full charge and up to 3 hours of use on a 10-minute rapid charge (via USB-C connection). The headphones are easy to operate with a microphone and buttons built into the left earcup for convenient handling of calls, music playback, and volume control. We’ve also included a 1.2 m cable so you can use M20xBT like a standard pair of wired headphones, when desired.