Amotus Car Kit Wireless Receiver Bluetooth 4.0, 3.5mm Aux Jack A hands-free driving solution for answering and receiving phone calls and streaming music from your Bluetooth enabled devices. Built-in microphone, Echo and noise canceling technology, supports apt for CD quality audio Unique One-Button Design - Play, Pause, Previous song, Next song, Answer and reject calls, private call is available; support Siri Max 3A Dual-port USB car charger can be used for charging devices at the same time. Requires 3.5mm audio input, not only use for car but also home audio and so on.