Bluetooth Adapter Receiver,URANT Car Kit Mini USB Wireless Audio Adapter Bluetooth Music Receiver & Adapter Home/Car Phone iPhone Stereo Speakers Headphones Car (AUX in) Music Sound System Use for Home Theatre, Mobile Phone, Karaoke Player, Computer, Stage Easy To Operate:Simply connect your speaker with our device, the name is "BTR118" immediately transform your speakers into a fashionable wireless bluetooth speaker Wireless Play:Removing troubles of wired connection,through the wireless connection and transmission,the user can enjoy a high fidelity music at any place indoor by wireless control Transmission Rate:3(Mbps) . Transmission Distance: up to 15m Portable Design:With Mini size,the feature of portable can let you carry them to anywhere you want. 1. For no USB port Speakers---Supply power to the device by connecting charger with 5V USB interface,then connect the Speakers AUX port with the audio cable. 2. For Speakers with USB port---Connect the device with speaker&#039;s USB port directly,then connect the Speakers AUX port with the audio cable. 3. Turn on the bluetooth function of computer, mobile or other device which has Bluetooth function,searching for the device to connect and input: 0000 for matching when the device is in the matching mode 4. After matching success, you can use your phone to play music 1 x USB Bluetooth Audio Music Receiver 1 x 3.5mm Audio Cable 1 x user manual