1. BROAD COMPATIBILITY - Work with Bluetooth enabled devices, like iPad, iPhone, iPod, HTC, Samsung Galaxy, Blackberry, MP3 Players, Smartphones.
2. EASY TO USE - All-in-one rotary switch for music controls - Play, Pause, Previous song, Next song; Talking controls: Answer and reject calls, private call is available.
3. VOICE CONTROL - Siri function supports making phone calls and sending massage by voice control, long press multi-function switch will activate.
4. USB CHARGING - Comes with two charging ports to charge most USB devices. The extra USB can quick charge your device with up to 3A high current.