Product name: Projection clock Theory: Multifunctional Thermometer Product Category: Projection clock Double-sided: Single-sided Display type: LCD Special features: Decoration, thermometer, weather forecast, alarm clock, Calendar,24 hour indicator, humidity measurement, Week display, Month display Waterproof: No Power type: External power supply Power supply: usb plug Movement type: Electronic Battery: button battery (memory function) Item number: ZX3538 Style: Modern and simple LCD screen display is clearer and brand- design. Larger, clearer screen viewing angles, comfortable color, indoor outdoor temperature (°C/°F), inside outside humidity, barometric pressure, moon phase, calendar, atomic clock. Easily obtain the maximum value of temperature and humidity in the past 24 hours. Time in optional 12/24 hour format Perpetual Calendar Up to Year 2099 Snooze time setting (1-30Minute or OFF) Comfort level dictator Weather forecasting and barometer function Time and temperature projection function Maximum /minimum value record of temperature and humidity Colour:black Material:plastic Package Contents: 1 x projection clock 1 x sensor 1 x USB power cable 1 x CR2032 button battery