Function VIA Bluetooth-enabled Devices.<br> Only fit for Alpine.<br> No functional limitations of the car radio.<br> Allows you to connect an external audio source.<br> It is possible from your smart phone to your car stereo to stream.<br> And pair your phone with our Bluetooth module,and choose Aux from your radio.<br> You can enjoy music from your phone through car speakers<br> Work with iPod/for iPad/iPhone 5/5C/5S/6/6 plus/Samsung/HTC/Sony/Nokia and any other phones or pads<br> 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<br> Very easy installation.<br> Installation method:<br> Red power cable connected to 12V+<br> Black power cable connected to 12V-<br> Bluetooth module connector: 12V<br> Cable length: 20cm(Approx.)<br> Colour: Black<br> Material: Plastic<br> <br> Package Contents:<br> 1 x Bluetooth AUX audio cable (with OPP bag)<br> Only the above package content, other products are not included.<br> 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.