This digital clock is in LED time display of 12/24-hour format. Alarm with snooze function to remind you the time for your daily. Its night mode(18:00-06:00) with automatic dimming, smart design for sleeping. Total 3 functional buttons: MODE, UP, DOWN for easily control. USB cable is included for charging requirement. Time Setting: Press MODE for 2s to enter time setting, setting order: hour-minute. Alarm Setting: Under alarm mode, press MODE for 2s to enter time setting, setting order: hour-minute-snooze time. "AL" will light up when setting. When the alarm beeps: press MODE to active the snooze function. The AL icon will flash. Or press DOWN to turn off the alarm then the AL icon will turn off. Sleep Interval Settings: The default snooze time is 5 minutes. In the alarm MODE, press MODE button 3, the time will enter the snooze interval setting interface. "05" flick the UP or DOWN button to set the snooze time. Night Mode: The clock will automatically lower LED brightness under night mode, press MODE twice to enter night mode. Press MODE to turn night mode on/off. When night mode is on, press MODE to enter night mode setting, setting order: start hour-start minute-end hour-end minute. Brightness Level Setting: 3 brightness levels: bright, medium, dark. Default brightness level is medium. Press UP to switch brightness level. Type: LED Digital Clock Material: Plastic + ABS Time Display: 12/24 Hours Battery: 1 x CR2032 Battery (Included) Size: 21.5cm x 4cm x 8.7cm/8.46" x 1.57" x 3.43" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Digital Clock 1 x CR2032 Battery 1 x USB Cable 1 x User Manuel