Description: Support all audio players or devices (such as mobile phones, computers, tablets, etc.) Uses a simple audio splitter (one audio input and two audio outputs).Lightweight yet sturdy design for easy connection when needed. Caution: Please make sure your car audio system (3.5mm AUX interface) is equipped with MP3 audio decode playback function.You can only use the cable under this condition. Installation: 3.5mm plug needs to be connected to car GPS, CD, DVD audio 3.5mm AUX audio interface, USB port must connect to flash driver.Implements the USB flash disk auto-play song. When you connect the USB flash driver, it can read the USB flash driver in MP3 file format.It has the function of a reading U disk that only the AUX interface of the car can use this kind of line. Specifications: 3.5mm Earphone Splitter: Material: Plastic Jack: 3.5mm Stereo Audio 3.5mm Male: Plugs into the AUX port in your car Color: Black Package Includes: 1 Piece 3.5mm Earphone Splitter