Large LED Digits Display--:With large 3D LED digit, you can read the real time in a long distance. With 54 LED Light Beads. Can remote view, no blue light. This alarm clock has 12/24 Hour Display. DESK OR WALL MOUNT CLOCK: it has notches on the back for mounting, stand is removable, can be easily hung on the wall as a wall clock, or place it on the desktop arbitrarily. CONTEMPORARY DECORATIVE CLOCK: Simple and compact design with novelty shape, fits well in any modern, industrial or contemporary environments. NOTE: The alarm is still a little bright even in night mode. We do not recommend that the people who are sensitive to light put it in the bedroom. The alarm clock can only work with power connected . It can be connected with USB cable or AC adapter. USB cable is equipped with the alarm clock when ship LED ELECTRONIC CLOCK: Adjustable Brightness with 3 intensity levels to accommodate different needs. It is a fantastic Christmas gift for children or teens.