Each time you connect your phone via Bluetooth, the time is automatically synchronized and you can easily set the time You can set 16 groups of alarm clocks, and each group of alarm clocks can be set for the snooze function, which is very simple. 8 ringtones to choose from Real-time temperature and humidity monitoring in your home, with high accuracy It can cooperate with other Mijia equipment to realize automatic adjustment of indoor temperature and humidity. For example: if the temperature is lower than 20℃, the heater will be turned on automatically The intensity of the backlight can be adjusted in different periods, and the duration of the backlight can also be adjusted, from completely off to 30 seconds Tap the alarm clock, the backlight turns on, you can check the time clearly even at night Specification: Material: plastic Weight: 106g Size: 80.3 x 41 x 83 mm Screen size: 61 x 61 mm Temperature range: -9.9~49.9℃ Humidity range: 0~99.9% Batteries: 2 x AA batteries (not included) Number of Alarms: 16 Temperature display: support Humidity display: support Bluetooth version: 5.0 APP: Mijia APP (supports temperature and humidity linkage with other devices) Custom alarm repeat mode: support Snooze function: support Backlight duration adjustment: support Backlight brightness adjustment: support Alarm volume adjustment: support Alarm replacement: support