Enjoy rich, detailed sound with enhanced bass response without inconvenient cables and cords. Bluetooth wireless capability lets you listen to audio from up to 30 feet away. Active noise cancellation circuitry silences intrusive sounds, while our padded headband and ear cushions make extended listening a pleasure. Foldable for added portability. Rechargeable battery provides 22 hours of continuous use. Built-in echo-cancelling mic allows you to have wireless phone calls and a remote control on the ear cup puts track control, play/pause, answer/end calls and volume control within easy reach. Voice prompts enhance user experience with Bluetooth pairing and interface confirmations. Siri and Google Voice activation. Works with Melody Music Assistant that allows you to use your voice to access music while on the go, no Wi-Fi required