Features:Only support the U-DISK,can't charge for your phone or other device.Use durable & flexible high quality cable to ensure high-quality sound.This aux cable only support MP3 Music Format,and don't make file in your U-DISK and don't store other documents.Insert the 5mm male plug into Car GPS, DVD speaker's AUX jack,then insert your U-DISK into the USB female port to play music.This adapter cable can only support connecting a USB-Disk (or other USB port storage device) with your car 5mm aux port for playing music in your car. Package Includes:1x Adapter Cable Specifications:Material: ABSLength: Approx. 5.9inch(15cm) note:Please allow 1-2cm errors due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.