With up to 50-hour battery life and quick charging, you’ll have enough power for multi-day road trips and long festival weekends. Great sound quality. 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. A built-in microphone provides you with hands-free calling. No need to even take your phone from your pocket. Boost the quality of compressed music files and enjoy streaming music with high quality sound through DSEE.