DHMXDC USB Bluetooth Wireless Audio Music Receiver Adapter w/ 3.5mm Stereo Output for Headphones Portable Speakers and Car Stereo Systems - Black 1. Use for Home Theatre, Mobile Phone, Karaoke Player, Computer, Stage. 2. Easy To Operate:Simply connect your speaker with our device,immediately transform your speakers into a fashionable wireless bluetooth speaker 3. 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 4. Up to 10M/32.8ft transmission distance, enjoy music freely anytime, anywhere without the bound of wire. 5. Portable Design:With Mini size,the feature of portable can let you carry them to anywhere you want.