Product descriptionMaterial: metal + quiet movementColor: white, green, blackAlarm clock size: 4 inch 17 * 12.5 * 6cmBattery type: 1 * AA 1.5V (not included)Operating voltage:> 1.4VScope of application: living room, bedroom, kitchen, clinic, office, etc.Note: Please select the appropriate alkaline battery for use.Scope of delivery 1 * alarm clock1. Loud alarm: The alarm clock is very loud, you definitely can't overhear it - also perfect for deep sleepers. Very easy operation with only two buttons for setting the time and alarm time.2. Noiseless: No annoying ticking, the creeping second hand creates a quiet sleeping and working environment.3. Good legibility: 4-inch dial, stereoscopic numbers, black and white dial has a good contrast, so that the time can be clearly read.4. Night light function: The pleasant lighting helps you to read the time in the dark. Simply press the light button to activate the LED lighting on the dial.5. User-friendly design Our wind-up clock is easy to use, there are only four buttons on the back: two rotary knobs for setting the clock and the alarm, an alarm switch for switching on / off and the night light button for displaying time in the dark, very easy to use.