Features: Use - & flexible high quality cable to ensure high-quality sound. Length:20cm8-inch. 3.5mm Male to usb Female Cable,ONLY Designed for CAR 3.5mm AUX PORT,worked only when your CAR 3.5mm AUX PORT MUST have Sound decoding function! Insert this 3.5mm male Plugs into Car Map , , DVD speaker's AUX Jacking,then insert your U-DISK into the USB female port to play music. This adapter cable CAN ONLY support connecting USB-Disk (or other USB port storage device) with your car 3.5mm aux port for playing music in your car!!! It CANNOT be used as normal Sound cable to convert 3.5mm AUX port to usb port!!! It CANNOT be used to connect your USB Type- headset/speaker to your AUX Port Devices(like PC or cellphone)!!! Specifications: Material: Length: approx 20cm/8-inch Package Includes: 1x OTG Adapter note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.