Height:20.8*5.2*10CM Material:ABS Display function: 4-digit LED high-definition large screen time display Clock function: Display hours, minutes, 12/24 hours can be converted to each other Date function: Display year month day Projection function: 4-digit LCD high-definition red time projection display, projection can rotate 180 degrees Alarm clock function: can set dual alarms and 05-60 minutes of snooze Brightness adjustment function: LED screen with three adjustable brightness levels, LCD with two adjustable brightness levels Night mode function: The product defaults to 18:00-6:00 and the LED screen automatically brightens slightly. The start time of night mode can be customized