Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si and high quality. Made of high quality material, durable and practical to Support TF Card, USB Flash Drive, Microphone, Bluetooth 5.0, HI-FI Sound The bluetooth module is made for Ai-net Port. Just plug the black connector into the socket back of your radio You can just Insert this item to the back radio then the red wire to 12V+, the black wire to 12V-. Match your phone or pad to bluetooth module, and Aux from your radio, then you can your phone to play music through car speakers. with for radios: For : CVA-1004 IVA-D300, IVA-D900. N333, N333RS / RRS DVA-7996R, DVA-9860R, DVA 9861Ri, DVA-9965R IDA-X100, IDA-X200, IDA-X300, iDA-X301, iDA-X303, iDA-X305, IDA-X311, IDA-X313 -7893, -7894, -7998, -7998R, -9535R, -9805, -9807, -9811, -9812, -9813, -9815, -9827, -9830, -9830R, -9831, -9831R, -9833, -9833R, -9835, -9847R, -9851R, -9853R, -9855R, -9812RB.-9852RR / RB, -9854R, -9856R, -9857R, -9883R, -9885R, -9887R, -9884R, -9886R, -105Ri, -117Ri,: -U5t, -U58, PD100, U57, U29 colour:Black Material:plastic Package Contents: 1 x adapter with microphone Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.