Key points:1. LED display time, date and temperature.2. Two kinds of brightness display.3. Calendar: January 1, 2000 to December 31, 1999.4. Three groups of alarm functions.5. Temperature range: -9°C-50°C.6. Mirror function.7. Cross mode setting: (18:00-06:00)Quiet sleep environment: 7:00-6:00 in the evening, the brightness of the LED display is dimmed by 50%, which does not disturb your sleep, which saves energy and protects your eyes.3 alarm clocks: You can set 3 alarm clocks to wake them up every day.Snooze mode: You can get more lazy time, and the alarm clock will remind you again.3.1-inch LED display: 3.1-inch LED large display, mirror surface, clear and easy to read.Modern decoration: not only clocks, but also artistic decoration, suitable for bedrooms, living rooms, kitchens, cars, offices and other places.Easy to use: Through the USB interface and charging cable, you can use the digital watch anytime, anywhere.illustrate:Color: white/green/blue/pinkSize: 7.2*4*1.8cmMaterial: ABSWorking voltage: CR2032 button battery (not included)Power supply: USB interface, data cable (included)