Enjoy your music and calls longer with a 50-hour battery Quick Charge: 3 minutes gives you 1.5 hours of listening time Our Digital Sound Enhancement Engine (DSEE) faithfully restores these to produce high-quality sound that’s closer to the original recording Built-in microphone lets you take hands-free calls The lightweight build and swivel earcups gently slip on and off, while the adjustable headband, cushion and soft ear pads give you all-day comfort Ten-metre Bluetooth wireless range allows for easy connection to your devices Multipoint connection allows you to connect to two Bluetooth devices at the same time Google Assistant, Amazon Alexa, and Siri voice assistants allow for easy operation