and high quality. Made of high quality material, durable and practical to use Support TF Card, USB Flash Drive, Microphone, Bluetooth 5.0, HI-FI Sound The bluetooth module is made for Alpine 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 play music through car speakers. Compatible with for Alpine radios: For Alpine: CVA-1004 IVA-D300, IVA-D900.INA N333, INA 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 CDA-7893, CDA-7894, CDA-7998, CDA-7998R, CDA-9535R, CDA-9805, CDA-9807, CDA-9811, CDA-9812, CDA-9813, CDA-9815, CDA-9827, CDA -9830, CDA-9830R, CDA-9831, CDA-9831R, CDA-9833, CDA-9833R, CDA-9835, CDA-9847R, CDA-9851R, CDA-9853R, CDA-9855R, CDA-9812RB.CDA-9852RR / RB, CDA-9854R, CDA-9856R, CDA-9857R, CDA-9883R, CDA-9885R, CDA-9887R, CDA-9884R, CDA-9886R, CDA-105Ri, CDA-117Ri,JVC: KS-U5t, KS-U58, PD100, U57, U29 colour:Black Material:plastic Package Contents: 2 x adapter with microphone