This USB to Mini Jack Adapter are used to connect your navigation through AUX input in the car to get sound. Connector: USB Female connect the U-Disk, read the mp3 from U-Disk Jack :3.5mm stereo audio plug in the car AUX port Not all cars with this interface can use this kind of cable. Some car AUX without decoding function, so can only use MP3 device, (only car AUX interface have the function of read U disk can use this kind of cable) When using, a disk had better not store too much, specific to the car AUX can support how much capacity.U disk can not have other documents inside and do not establish folder.MP3 format music is used. It is not a charger cable. Performance: - Product colour: White Ports & interfaces: - Cable length: 0.2 - Connector 1: 3.5mm - Connector 1 gender: Male - Connector 2: USB A - Connector 2 gender: Female Vendor information: - Brand Name: MicroConnect - Homepage: https://microconnect.me/ - Warranty: 1 - Product.Details.Specifications.Level1: Server, Computer & Printer Parts - Product.Details.Specifications.Level2: Cables - Product.Details.Specifications.Level3: Audio - Product.Details.Specifications.Level4: Audio Cables