ETvalley Car Bluetooth Adapter for Home Audio System & Bluetooth Car Kits with 3.5 mm Stereo Output for Smartphones & Tablets Really easy to install and use- automatically connect to your phone; turn on the Bluetooth of your phone first and after the Bluetooth of the receiver. Enjoy your music and answering call while driving without taking sight off the road. It is the perfect product for car owners. Compatible with almost every mobile devices such as iPad/iPod/iPhone, Samsung, Nokia and other mobile devices. Connect two Bluetooth devices at the same time. This receiver with a built-in battery which provides up to 10 hours of playing time and only need about 1.5 hours to be fully charged.