new and Made of material, and practical to use Support TF card, USB flash drive, microph, BT-compatible 5.0, HI-FI sound. Operates on ALL pier radios with CD changer port commonly known as for IP-Bus The BT-compatible module is made for Pier 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 ph or pad to BT-compatible module.and choose aux from your radio, then you can use your ph to through car speakers. You can hear music from your ph/pad/mp3(They should have blueooth function). Compatible For: Compatible with all devices of the P-series, for example: DEH-P2500 R, DEH-P2600 R, DEH-P3500 MP, DEH-P6600 R, DEH-P9600 MP DEH-P3100 , DEH-P4100 for SD, DEH-P5100 , DEH-P7100 BT, DEH-P8100 BT DEH-P88RS-II-DEHP88RS, etc Colour:As Shown Material:plastic Package Contents: 1 x Audio Cable(Due to different product batches, the appearance , which does not affect the use.) 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.