1. Material: ABS, electronic components
2. Function: alarm clock, time display, temperature display, humidity display
3. Display type: digital
4. Batteries: AAA batteries x 3 (delivery without batteries)
5. Power supply: USB power cable connected to the power supply
6. Energy-saving backlight, intelligent photosensitive, automatic brightness adjustment
7. Two display modes, you can adjust according to your needs
8. The battery is used to synchronize the memory time after power failure, without brightening the screen
9. Product size: 16.6 x 8.4 x 4.5 cm