Material: metal + silent movementColor as shownAlarm clock size: 4 inches/17*12 5*6cmBattery type: 1*AA 1 5V (not in the scope of supply)Working voltage: 1 4VApplication: living room, bedroom, kitchen, clinic, office, etc Note: Please choose a suitable alkaline battery to useScope of delivery: 1 * alarm clockLoud Alarm Clock: The alarm is so loud that you definitely won't hear it - also great for deep sleepers, it's very easy to operate, just two buttons for setting the time and the alarm timeNo Noise: No annoying ticks, the wriggling second hand creates a quiet sleep and work environmentGood legibility: 4-inch large dial, three-dimensional numerals, contrasting black and white dial, time is clearly distinguishableNIGHT LIGHT FUNCTION: Pleasant light helps you read the time in the dark, just press the light button to activate the dial's LED lightingUser-friendly design Our clockwork clock is easy to use, with only four buttons on the backTwo knobs to set the clock and alarm, an alarm switch to turn on/off, a night light button to show the time in the dark, very easy to use