Amazon.com: Audio Bluetooth Receiver,HiFi Wireless Audio Adapter,Bluetooth 4.2 Receiver with 3D Surround AptX Low Latency for Home and Car Music Stereo Streaming (Pair 2 at Once) : Electronics
User manual Logitech Bluetooth Audio Adapter (English - 143 pages)
Logitech - Bluetooth Audio Receiver - Newegg.com
Logitech Bluetooth Audio Adapter Review: An affordable unit with great connectivity
Logitech Bluetooth Music Receiver review: Forget the aux cord, this little box turns any stereo into a wireless music system - CNET