We rely on our reputation and customer satisfaction to be successful. Therefore, your feedback is very important to us. Please leave good feedback to us if you are satisfied with our goods and service. 2. We care about our customers' value, and will always do our best to help you. "3. Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you may have, and will do our best to resolve the problems. 4. Please email us before leaving any negative feedback or opening an dispute on the website, because we always try our best to serve our customers, we will give you a satisfied solution.Details: Plug into car stereo AUX 3.5mm audio interface.Plug another USB port on a USB memory stick. It makes the car plays songs from a USB memory stick.USB Flash disk capacity not too large;Specific to car AUX audio interface to support multiple large capacity, and u don't need to have otherdocuments and do not create a folder, only songs in MP3 format .NOTE: Please make sure your car have audio decoding capabilty.Package: 1 x usb to 3.5mm jack audio cable