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4 buttons usb/sd player
1.remote control 2.USB/SD /MMC card reader3.power on/off control 4.power 12V DC
5.Frequency input
Feature remote control
back/REW.Under U disk or SD/MMC card playing state press the key to switch to previous program .hold the key for over 2seconds to select program quickly backward.the player any starting from current program quickly select program and 1 programs may be sereached every 0.2secondNext/FF under U disk or SD/MMC card playing state.press the key to switch to next/program quickly forward.the player may starting from current program quickly select program and 1 program may be searched every 0.2secondUnder SD/MMC card playing state.insert the U disk the player automatically switches to U disk playing state under U disk playing state. insert the SD/MMC card .the player automatically switches to SD/MMC card playing state.press the key to increase the volumepress the key to drop the volumepress the key to choose a variety pf music effect4 buttons usb/sd player