Function VIA Bluetooth-enabled Devices._x000D_ Only fit for Alpine._x000D_ No functional limitations of the car radio._x000D_ Allows you to connect an external audio source._x000D_ It is possible from your smart phone to your car stereo to stream._x000D_ And pair your phone with our Bluetooth module,and choose Aux from your radio._x000D_ You can enjoy music from your phone through car speakers_x000D_ Work with iPod/for iPad/iPhone 5/5C/5S/6/6 plus/Samsung/HTC/Sony/Nokia and any other phones or pads_x000D_ Bluetooth 4.0 version, and compatible with 2.0 3.0 4.0 other versions of Bluetooth, can support the commonly used MP3 format audio, but also support the WMA/WAV/FLAC, and other high-quality audio format decoding, non-ordinary Bluetooth functions, can support DSD large capacity transmission_x000D_ Very easy installation._x000D_ Installation method:_x000D_ Red power cable connected to 12V+_x000D_ Black power cable connected to 12V-_x000D_ Bluetooth module connector: 12V_x000D_ Cable length: 20cm(Approx.)_x000D_ Colour: Black_x000D_ Material: Plastic_x000D_ _x000D_ Package Contents:_x000D_ 1 x Bluetooth AUX audio cable (with OPP bag)_x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_