Support Microphone , Bluetooth 5.0 , HI-FI Sound. Operates on ALL Pioneer Radios with CD changer port commonly known as IP-Bus : The bluetooth module is made for Pioneer IP-BUS Radio; Just plug the Black connector into the socket back of your radio; You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers. You can hear music from your phone/pad/mp3(They should have blueooth function). Compatible for: for all devices of the P-series, for example:for DEH-P2500 R, DEH-P2600 R, DEH-P3500 MP, DEH-P6600 R, DEH-P9600 MP; for DEH-P3100 , DEH-P4100 SD, DEH-P5100 , DEH-P7100 BT, DEH-P8100 BT; for DEH-P88RS-II-DEHP88RS, etc colour: black Material: ABS Package Contents: 8 x Audio Cable Adapter 8 x Bluetooth microphone Only the above package content, other products are not included. Note: Light reflection 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.