Description: Color: White,Black Material: plastic Projection time function (pressing button) Measuring temperature range: -9.9~+60℃ Measuring humidity range: 20%~90% Resolution: 1℃ Display: Max/Min temperature and humidity Calendar Display: 2001 -2099 year Power Supply: 2x AAA battery (not included) / DC 4.5V input (cable not included) Dimensions: 15.00*2.50*10.50cm (L*W*H) How to use: 1. Setting the timeThe hour digits are blinking and can be set by pressing UP or Down for setting hours.Use the same way to set minute 2. Setting the alarmPress the mode to view the alarm time.Press mode hold for 3 seconds to enter the alarm setting mode.The hour digits are blinking and can be set by pressing UP or Down for setting hours.Use the same way to set minute 3. Setting the calendarPress the mode to view the calendar.Press mode hold for 3 seconds to enter the calendar setting mode.The year digits are blinking and can be set by pressing UP or Down for setting years.Use the same way to set month and the day 4. Alarm on/offPress up to turn alarm on or off 5. Max/minPress the max/min to view max temperature and humidity record.Press the max/min again to view min temperature and humidity record Package include: 1 X Projection Multi-function Alarm Clock(no battery) 1X User Manual USB Digital LED Display Projection Alarm Clock Snooze Function Weather Temperature Thermometer Humidity Table Projector Alarm Clock Home Decor Color: White,Black Material: plastic Projection time function (pressing button) Measuring temperature range: -9.9~+60℃