and high quality Easy to use by connecting directly 30-pin dock to change the common sound-box to Bluetooth sound-boxSupport digital products using Bluetooth ,such as For ,For , Bluetooth cell phone, Bluetooth PC.Complies with Bluetooth 2.1, Support A2DP v1.2Powered: via device ( docking station). LED: One LED for paring and charging status. Transmission distance: up to 10 (No obstructions)Simply insert this bluetooth audio receiver to your 30Pin male input on your speakers, pair it to your Bluetooth enabled device, and enjoy the wireless music revolution.Whether you Bluetooth for your dock station, through your home-theater system, in your kitchen, bathroom, or bedroom... This is your There are LED indicators to show you the connection status of your Bluetooth pairing.Compatible models:For -1212,AD330/93,MCD-322,DCM-8000,DCD3020/96,DCD-7010,-290For TSX-70For -TC-580T,800SFor V35,135,SOUNDDAK 1,SOUNDDAK 2For Pioneer X-SMC1,XDS501-R,XDS301-RFor For RD-N1Output: Bluetooth2.1Support file: Bluetooth V2.1 A2DP V1.2Connector: Equipment with For 30-Pin DockTransmission distance: Up to 33 feet (10meters) Methods used:Step 1: Bluetooth music receiver connects directly to For speakers 30-pin dock;: Enable the bluetooth function for the devices such as For ,For , Bluetooth PC, Cell Phone, search Bluetooth devices to find I-Wave and connect it;Step 3: After successful paring, by speakers without wires.Colour:blackMaterial:plasticSize:4.4cm x 3.5cm x 0.8cmPackage Contents:1 x Bluetooth Music ReceiverOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.