Kensun Bluetooth 4.0 Car Kit for Hands-Free Talking and Streaming Plug & Play, aux line-in (via a 3.5mm input jack). Streams sound and music to car OEM stereo system. Supports car radio button and steering wheel volume control 4-button design with blue back-lit LED display makes for easy control, night and day, for call answer/end/reject, music play/pause/previous song/next The music will stop automatically when receives an incoming call Recharge your device while listening to music via USB port (no battery required) Compatible with all iPhones, iPads and iPod Touch, Android and Blackberry smartphones an all Bluetooth (A2DP/HFP) capable devices