and high quality. Made of high quality material, and practical to use 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 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. Compatible with for radios: For : CVA-1004 IVA-D300, IVA-D900. N333, N333RS / 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: 4 x adapter with 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.