INSTRUCTION MANUAL Function Introduction + Mirror LED ALARM clock « 5 key operation: ALARM, MODE, LIGHT/SNOOZE, UP, DOWN + 12/24 hour format + Month and Date display « Alarm with snooze. + indoor Temperature function, Celsius/Fahrenheit selection, test range SHC 450°C I4F ~ 12°F) + Display mode selection: Time display, or time, month/date or indoor temperature circulation display. + Power way: apes x AAA battery or 5.