FeaturesSurround Sound, Ambient Sound Mode, Volume Control, Wireless Charging, Replaceable Ear Tips, Volume Limitation, Adjustable Headband, Echo Cancellation, Built-In On/Off Switch, NFC Bluetooth Pairing, Built-in Microphone, Call functions, Noise Cancellation, Noise Isolation, Stereo, Waterproof, Active Noise Cancellation, Bluetooth Multi-point, Closed Back, Rechargeable Battery, Extra Bass, Speech-detecting accelerometer, Microphone Mute Button, HD Voice, Sweat-Proof, Wireless, Playback Controls, Touch Control
Number of EarpiecesDouble