Coocheer Bluetooth A2dp Music Audio Receiver Adapter Turns Iphone/ipod Docking Station Into a Bluetooth Dock Turns iPhone/iPod docking station into a Bluetooth dock. Compatible with all devices which enabled A2DP stereo Bluetooth. Only compatible with newest generation sounddock series. Very easy to use by just connecting30 pin dock directly to change the common sound-box to Bluetooth sound-box. Support most digital products such as iPod touch, iPhone, iPad,Bluetooch cell phone, Bluetooth PC, PSP.