Material: metal + quiet movement Color: white, green, black Alarm clock size: 4 inch 17 * 12.5 * 6cm Battery type: 1 * AA 1.5V (not included) Operating voltage: > 1.4V Scope of application: living room, bedroom, kitchen, clinic, office, etc. Note: Please select the appropriate alkaline battery for use. Scope of delivery: 1 * alarm clock 1. Loud alarm: The alarm clock is very loud and ensures you won't miss it, ideal for deep sleepers. Simple operation with two buttons for setting time and alarm. 2. Silent operation: No ticking noise, smooth sweeping second hand provides a quiet environment for sleeping and working. 3. High visibility: 4-inch dial with raised numbers and high-contrast black and white design for clear readability. 4. Night light function: Soft LED illumination helps read time in the dark. Press the light button to activate the dial lighting. 5. User-friendly design: Easy-to-use analog alarm clock with four controls on the back: two knobs for time and alarm setting, an alarm on/off switch, and a night light button for viewing time in darkness.