375512 Hands-Free car kit designed for answering and receiving calls with any Bluetooth smartphone - iPhone， Android etc，Built-in microphone and easy to use music controls 25W dual USB Car Charger can charge 2 tablets， phones or other devices in your car at the same time. Provides audio through your 3.5mm input in Car Stereo when playing music and answering phone calls Car charger can smart identify your device and seek to maximize its charging speed. Bluetooth Car Kit is designed to provide a simple hands-free solution for answering and receiving phone calls while on the go. Also stream stereo music from your smartphone， tablet or other Bluetooth capable devices Receiver dimension: 40 x 40 x 16.5mm (1.6 x 1.6 x 0.6 inch) Car charge dimension: 78 x 33 x 37mm(3 x 1.3 x 1.5 inch) Net weigh: Receiver 10g ; Car Charger 25g Bluetooth version:3.0 Working distance:10m Operation system: compatible with iOS， Android， Windows Key lifespan: 1million times Receiver working current:<30mAh Receiver input voltage: DC5V Car charge input voltage:DC 12-24V Car charge out: 5V Interface：USB Port x 2; Audio Port; Micro USB Port; Buttons: Multi-function Key (on/off/Play/Pause)，Volume +/- (Short press:volme +/-; Long press: MoveNext/MovePrevious) 1 x Car charge 1 x Bluetooth Receiver 1 x Cable 1 x English Manual