Add a USB audio input into your factory car stereo, you can play music from USB drive or SD / Micro SD / SDHC / MMC card with card reader. Support muti folders playback,
3.5mm AUX Input Jack enhance high digital sound quality, compatible with all device that has a 3.5mm audio output,such as Mobile Phone, MP3 player, XM Satellite Radio, Video Game Systems, DVD player, etc
Built-in high performance amplifier chip, static free CD quality clear audio sound.