Easy to operate: simply connect your speaker with Bluetooth Receiver, immediately transform your speakers into a fashionable wireless bluetooth speaker. Wireless play: removing troubles of wired connection,through the wireless connection and transmission,the you can enjoy a high fidelity music at any place indoor by wireless control. Portable design: with mini size,the feature of portable can let you carry them to anywhere. Perfectly compatible: for mobile phone & computer. Support IPhone and smart phones. 8-10 meter working distance. The latest Bluetooth Technology (Bluetooth EDR Technology) Provides additional bandwidth to the Bluetooth radio, Plug in the USB port of the home stereo system that is played with the U disk and do not require any external connections.