Features: Easy To Operate: Simply connect your speaker with our device,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 quality music at any place indoor by wireless control. Perfectly compatible: Our products can be compatible with most of mobile phone or computer on the market, for IOS/iPad/iTouch and all kinds of smart phones. Portable Style: With mini size,the feature of portable can let you carry them to anywhere you want. Specifications: Color: Black Bluetooth: 2.1+EDR Support: A2DP V1.2 Power Supply: 5V DC Transmission Rate: 3(Mbps) Transmission Distance: up to 10m Power supply mode: USB-POWER Operation Steps: For no USB port Speakers---Supply power to the device by connecting charger with 5V USB interface,then connect the Speaker's AUX port with the audio cable. For Speakers with USB port---Connect the device with speaker's USB port directly,then connect the Speaker's AUX port with the audio cable. 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. After matching success, you can use your phone to play music. Package Include: 1 x Bluetooth Audio Adapter 1 x 3.5mm Audio Cable .