On-ear headphones boast an ergonomic design with ultra-soft ear cushions for a secure and comfortable fitBluetooth connectivity delivers wireless freedom so you are never tethered to your device40mm custom-tuned drivers ensure powerful bass, smooth mids, and bright treble for signature Marshall sound3V, 680mAh battery provides over 80 hours of playback on a single charge; 15-minute quick charge gives you 15 hours of listening time so you can power back up quicklyWireless charging capability makes it easy to recharge the headphones without the tangle of wiresMulti-directional control knob allows you to effortlessly control your music and phone calls3.5mm socket lets a friend plug in and listen to your music alongside of you