... /500MA power supply, external power, built-in button batteries, when power normal travel time.Specifications:The ... in the normal display status, press the Snooze button (SNOOZE) to show the temperatureB. press again ... switch. In the normal display state, press the button (DOWN) to conversion, when12-hour ON, ... or the pen head to press the reset hole (RESET) the reset button, the alarm clock will return to ...