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This 3.5mm male to USB 2.0 female OTG converter cable is specially designed for car audio systems without built-in USB ports. It connects to the vehicles 3.5mm AUX jack and accepts standard USB flash drives, allowing you to play stored MP3 audio files on your car stereo without mobile phones.
Built-in decoding chip supports mainstream audio formats, outputting smooth stereo sound without distortion or stuttering during driving. The flexible short cable avoids messy wiring on the dashboard, and the sturdy plug structure prevents loose connection caused by vehicle vibration.
No extra power supply or software installation is required; simply insert the U-disk with music files and plug the adapter into the car AUX port for instant audio playback. It is an affordable upgrade accessory for old car stereos, ideal for daily commuting, road trips and long-distance driving entertainment.