Intelligent Control: Alarm Clock once the setting is complete, Control your alarm clock with just one button at the top. The usual press open high brightness backlight, Alarm at the Open snooze function. The operation is simple, Used 3xAAA battery (Not Included). Clear display The alarm clock has a super large digital display with bold fonts. It is easy to read and gives you a comfortable visual experience. Easy operation The clock has multiple easily accessible buttons at the back. You can easily set the date, time, and alarm mode by using the buttons The snooze/backlight button is situated at the top for quick access. Progressive sound The sound of the alarm increases progressively and the frequency becomes faster with time