... -memory function:FM,volume -Max vol:26 -last/next songs,vol,Pla/Pau,repeat,mode Decoder Board with FM radio for SD card ... ,usbFunction and features: SD/MMC/USB Card MP3 Decoder Board, pcb board, fm radio and digital screen display, memory function with ... +, and POWEROFF+.4.“MODE”: When this player works with SD card and USB flash drive together, it has such switching order as USB ...