General description This 30cm Silent Luminous Wall Clock features luminous numbers that glow in the dark, making it easy to read at night. Its silent movement ensures a peaceful environment, perfect for bedrooms, kitchens, living rooms, and offices. Technical specifications Diameter: 30 cm Movement: Quartz sweep movement Power: 1 AA carbon zinc battery (not included) Installation Easy to install with a hook included Installation through the slot on the back of the clock Usage Ideal for various settings including living rooms, bedrooms, kitchens, offices, and classrooms For optimal performance, avoid using alkaline or high-power batteries Other information Note: Insert the positive side of the battery first