Enjoy rich, detailed sound with enhanced bass response without inconvenient cables and cords. bluetooth wireless capability lets you listen to audio from up to 33 feet away, while our padded headband and ear cushions make extended listening a pleasure. rechargeable battery provides 12 hours of continuous use. built-in echo-cancelling mic allows you to have wireless phone calls and on-ear touch controls puts track selection, play/pause, answer/end calls and volume control within easy reach. voice prompts enhance user experience with bluetooth pairing and interface confirmations. voice activation lets you access siri and google voice to make phone calls, listen to music, set reminders and more.