1. This cable is with Bluetooth module. 2. This product is specially made for car audio/stereo, it's a replacement of KCE-237B Full Speed AUX Input. 3. Can be used with Alpine/JVC/Sony radios if only there is socket for our connector and it has AUX function. 4. Just plug the connector into the back of the radio,connect the two wires with 12V+(red), 12V-(black). 5. Choose Aux from the panel and connect your phone or mp3 with bluetooth. You can enjoy the music from the phone or mp3 pad and more. Bluetooth 5.0 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 mission. Only fit for Alpine of the following models: For Alpine 2009 up CD Player (Please set AUX site after install the cable) For connecting a portable MP3 player or similar to CDE101E 102E 105E ,CDA-105Ri, CDE-104BTi, CDE-103BT, CDE-102Ri, CDE-101R/RM and CDE-W203Ri and so on .. Full-Speed devices from 2009 f.e. CDE-101R / RM, CDE-102Ri, CDE-103BT, CDE-104BTi, CDE-111R / RM, CDE-112Ri, CDE-113BT, CDE-114BTi, CDE-W203Ri, CDA-105Ri, CDA-105,CDA-105E,CDA-117Ri, IDA-X301, IDA-X303, IDA-X305, IDA-X311, IDA-X313, IXA-W404R, IXA-W407BT, TME-S370 and also many devices from 2007 in connection with the Bluetooth model KCE-400BT Colour:black Material:ABS Package Contents: 1 x Audio Cable Adapter 1 x Bluetooth microphone Only the above package content, other products are not included. 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.