Konigswerk 4" Retro Non-ticking Quartz Analog Bedside Twin Bell Alarm Clock With Loud Alarm and Nightlight AC054G Quiet sweep second hand, no ticking to ensure a good sleep and best working environment. Night light (built-in lamp) is perfect at night. Simply press the button when staying in bed. High Quality smooth sweeping quartz movement. Bell alarm sound. Super loud alarm sound for heavy sleepers Diameter: 4-inch, clear number display Requires 1 AA battery (NOT included)