Clock & Night Light Design Alarm Clock- There are clear button instructions on the back of the alarm clock, 12/24 hour conversion, which is easy to read. As a clock, the screen can also be used as a daily night light. Long press the top button to adjust the brightness, and the brightness time can be adjusted freely from 5 to 120 minutes. Double alarm clock & LED Snooze Alarm Clock- Designed with 2 groups of independent alarm clock control and 4 kinds of weekday alarm mode selection (1-1, 1-5, 1-6, 1-7). Press the snooze button, the alarm will sound again after 5 minutes, press any button on the back to turn off the snooze mode. Adjustable functions- There are 18 types of ringtones to choose from and 5 volume levels can be adjusted (maximum 120dB), 5 brightness levels can be adjusted manually. Time memory function- The alarm clock has a battery at the Built-in 1500mAh lithium (also supports USB charging) with memory function, so the time does not need to be reset when power off. When the battery power is low, a low battery reminder appears. Constant light & Power Saving Mode- The alarm clock screen will automatically turn off after 8 seconds of inactivity, and you can press the top button to turn on the time display. Constant light mode consumes more power.