Function 1. Dual alarm clock (1) Switch the alarm clock: short press the alarm key to display the alarm clock 1 pattern and alarm status, then press the alarm key to display the alarm clock 2 pattern and alarm status, press the +/- key to set the alarm OFF/ON, and then press the S key to enter the corresponding group Alarm setting. (2) Turn off the alarm clock: When the alarm clock rings, press and hold the SNOOZE button for 3 seconds to turn off the current alarm clock and enter the next alarm clock state. Short press any key to start snooze. (3) Support to set Monday to Sunday/Monday to Saturday/Monday to Friday Alarm Clock 2. Voice-activated wake-up Voice-activated wake-up in battery mode Voice control: clap your hands or knock on the table to wake up the alarm clock 3. Five gear brightness adjustment In the time state, short press the SNOOZE button, the brightness will be set in cycles from 1 to 5 4. Night Mode 22:00-6:00 Brightness automatically enters low brightness mode 5. Two display modes Press and hold the + button for 3 seconds to switch the display mode (1) Only the time is displayed (2) Cycle display of time, date and temperature 6. Anti-disturb Funtion at Night In the time state, press and hold the SNOOZE button for 3 seconds to enter the do not disturb mode, turn off the display, turn off the voice-activated wake-up, and only manually press the button to wake up the screen 7.Display toggle (1) 12/24H display switching: long press the S key, 12/24H display can be switched by +/- (2) Celsius/Fahrenheit display switching: in time state, press and hold the - key for 3 seconds to switch the temperature Fahrenheit/Fahrenheit display Product Show Body Color :White Body/Black Body Shape:Rectangle Words:White/Blue/Orange Material of Screen:Mirror Size: 15.5*2.5*6.2cm USB Cable Style:3.5x1.35mm(18198) Voice control: clap your hands or knock on the table to wake up the alarm clock NOTE 1:Take the protective flim on Clock Screen,it will be brighter. NOTE 2:It will go off after 10 seconds when only powered by AAA BatteryNot Included Clap your hands or knock on the table to wake up the alarm clock If you want screen always on,please plug in use.