MDN BTR006 Bluetooth Adapter Wireless Receiver with A2DP Technology for Home Stereo , Portable Speakers , Headphones , Car Music Sound Systems , & More 3.5mm Media Devices Plugs directly into your speaker or stereo's AUX line-in port via 3.5mm headphone plug Compatible seamless with Bluetooth A2DP headset and Bluetooth A2DP speaker etc Charges via the included USB cable in 2 -3 hours and delivers 12 hours of audio transmission per charge Set-up is easy: once the receiver is connected to your audio system, simply perform a scan on your Bluetooth enabled device, and pair it. It uses the latest CSR Bluecore 5 chipset ensuring superb clarity and performance and provides a very useful range of up to 10m