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 12Vand, 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 play music through car speakers. You can hear music from your phone or pad or 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 UB, DEH-P4100 SD, DEH-P5100 UB, DEH-P7100 BT, DEH-P8100 BT for DEH-P88RS-II-DEHP88RS, etc 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.