Unique Battery Powered LED Alarm Clock - Our LED alarm clock is battery powered only and the battery will last up to approximately one year. (4xAA battery, not included). This battery life for LED clock is very rare in the market. Digital Alarm Clocks Beside - No power cord or plug required, so you can place the clock beside or anywhere, even where there is no socket or power outlet. It has a single alarm that gradually changes from soft to loud. Three Brightness Levels with Night mode - Three adjustable LED brightness levels: high, medium and low. It also has a night mode that automatically dims the alarm to low light from 8pm to 6am. Night mode cannot be set manually. Easy to See - The clock glows all the time, making it easy to see day and night. Night mode lets you see the time at night without pressing a button and won't irritate your eyes. Simple to Use - With a simple design, the digital clock is easy to set up and use, making it a great gift for your family or friends