Plug Aad Play: Only support the U-DISK/USB Flash Drive with MP3 decoder. (Please make sure Aux port of your car has Mp3 decode function that can read the mp3 file from U-disk. If not, it will can't work ).No other drive need. Supported Format:This aux cable only support MP3 Music Format,and don't make file in your U-DISK and don't store other documents. Compatible Device: This 3.5mm audio jack cable ONLY can be used on Auto Car by U Disk/Flash drives. Premium Sound Quality：Built with durable ABS housing and Advanced C-Media IC technology for optimal sound quality and device performance. What You Get: 1 x USB to 3.5mm audio jack cable