Usage Tips:Bluetooth Aux Cable Adapter For Alpine KCA-121B AI-NET CDA-9857 CDA-9886 CDA-117 for Smartphone Microphone Handsree This Style support microphone handsfree and bluetooth audio !!! Microphone cable size : 150CM 1.Plug and play, easy install 2.Function via Bluetooth-enabled devices 3.No functional limitations of the car radio 4.Allows you to connect an external audio source 5.It is possible from your smartphone to your car stereo to stream 1.Bluetooth module connector: 12V 2.Red cable: 12V + (positive) 3.Black cable: 12V - (negative) 4.Cable length: approx 20 cm Compatible with the following radios: for Alpine for JVC and all UniLink devices Compatible with following Alpine radios: INA-N333RS/RRS, DVA-7996R, DVA-9860R, DVA-9861Ri, DVA-9965R, CDA-7998R, CDA-9535R, CDA-9830R, CDA-9831R, CDA-9833R, CDA-9847R, CDA-9851R, CDA-9853R, CDA-9855R, CDA-9812RB, CDA-9852RR/RB, CDA-9854R, CDA-9856R, CDA-9857R, CDA-9883R, CDA-9885R, CDA-9887R, CDA-9884R, CDA-9886R, 105Ri CDA, CDA-117Ri IDA-X100 IDA-X200, IDA-X300, iDA-X301, iDA-X303, iDA-X305, IDA-X311, IDA-X313 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.