SD/MMC/U-disk and USB driver, Support MP3 player and audio; Support SD/MMC card and u-disk, support searching MP3 by auto when insert equipment; Support audio input, stereo surround; Support DC 5V (USB) charging, support (5V/1A) charger, built-in high capacity battery, Support FM: 87.5MHZ-108MHZ Built-in battery, LINE IN interface can connect Phone, MP3, PM4, PC, Laptop and other sound sources. ...