-Insert the battery into the battery compartment in the correct direction or use an external input power source -Turn the volume knob clockwise to turn on the radio -When you hear the DI sound you can turn on the radio and the volume will increase -Turn the volume counter clockwise to decrease the volume knob continue turning when you hear the DI sound you can off the radio -Adjust the band selector and the turn the tuning knob to receive different programs from AM/FM/SW -When listening to fm/sw programs please pullout the antenna and change the length to make the listening clear When listening to a program from AM change the position of the radio until you receive the best signal -Mp3 ; Insert the USB Card into the USB Card Slot, select the USB card to play the music -Press Play/Pause to select play or pause ,press PREV/NEXT to get the previous or next track long press PREV/NEXT to Rewind /Fast forward function -Rechargeable battery ,when the machine sound is low or does not work it indicate the the lithium battery is undervoltage or out of power -Plug in the external charger and charge it -The battery can be fully charged in 3-4hours