... -memory function:volume,FM frequency TF card,USB,AUX Decoder Board with FM radioStrang decoder: TF card,USB,AUX MP3 Decoder Board, pcb board ... Option Power cable Option Antenna wire OptionMore information:-Supporting TF Card and USB disk to play music, with AUX-Support MP3,WMA ... +, and POWEROFF+.4.“MODE”: When this player works with SD card and USB flash drive together, it has such switching order as ...