You can set the 12-hour modes or the 24 hours modes by pressing the + button for 3 seconds. The led clock is powered by a USB cable only, not a battery. You can hide the power wire behind some items or into the wall.
The multifunctional digital clock has a wake-up function and a snooze function.
Effortless to mount as a wall clock using the integrated keyholes, or as a desk clock using the fixed base.