Digital Alarm Clock with LED Display, Brightness Adjustment, Battery Backup, Snooze, 12/24Hr for Heavy Sleepers Kid Senior Teen Boy Girl Kitchen - 5.5 x 3 x 1.6 Inches. (Black Color) Digital Alarm Clock Compact - This Searon AC100 alarm clock with a 6" LED display screen for easily checking the time at a glance, Measures 5.5 x 3 x 1.6 inches (LxHxW); weighs 0.33 pounds (5.3 oz). ✔️ 6-level Brightness Adjustablement - The brightness dimmer design allows you select the brightness of display from 0-100 level by "LIGHT" button. Needless worry the brightness, either too bright thus affecting your sleep or too dark to read time. ✔️ AC/DC Powered with Backup Battery - This Digital alarm clock comes with power adapter and USB cable. A built-in internal battery may be used as a backup power source to ensure time and alarms are retained in memory. ✔️ Snooze - Repeating snooze function makes it possible to sleep a little longer, The interval time between 2 snoozes is 9 minutes.