Auto Setting Alarm Clock with Full Range Dimmer: 4.3 Inches large LCD screen displays eye easy catch blue digit, time and date are easy to read at a glance. 0%-100% adjustable dimmer enable you to set the brightness of display to a comfortable level at will. The digital alarm clock is perfect small gift for kids elderly senior. Advance Auto Time Set Alarm Clock: The clock will sets itself to the correct time once plug in, hassle free to set time. Cell button battery included as backup battery, which will store the time, date and alarm setting during main power outage, however it will not support the time display nor trigger the alarm. Self Setting Clock with Auto DST and Selectable Time Zone: Automatically adjusts to Daylight Savings Time while set the DST on. Four USA time zone selectable per your location (EST/ CST/ MST/ PST). Bedroom Alarm Clock with Ascending Soft Beeping Alarm & Snooze: Ascending alarm sound wake you up naturally. Additional snooze to counter oversleeping,