... 2099Alarm Clock with "beep" lasting for 1 minuteYou can turn OFF the display (the internal clock is still running) to make it looks ... ---"SET", "UP", "DOWN", "ON/OFF", "RESET"Battery ( AG3) inside, so that the time won't reset during power outage ... make some noise (clap your hands, rap on the table or pat the clock) nearby can wake it upPackages : 1 ... cm Digital LED wooden alarm clock with blue light