Product description material: Metal +alarm clock quiet exercise: 4 inch 17 * 12.5 * 6cmbattery Type: 1 * AA 15V (not within the delivery range)Operation voltage:> 14V: living room, bedroom, kitchen, clinic, office, etc.Note: Please select the appropriate alkaline batteryIncluding: 1 *Alarm clock1. Loan alarm clock: The alarm clock is very large, you must not overhearted it -very suitable for deep sleeperUse only two buttons to set up the operation with a very simple operation time and alarm time2. No trouble: no trouble ticking, the crawling second -hand will create a quiet sleep and working environment3. Good popularity: 4 -inch plate, stereo number, black and white dials are very good, so you can clearly read the time4. Night light function: pleasant lighting can help you read the time in the darkJust press the light button to activate the LED lighting of the dial6. The user -friendly design of our line clock is easy to use. There are only four buttons on the back: two rotating knobs used to set clocks and alarms, a warning switch turned on/off, the night light button is displayed in the dark, it is very very very very very displayed in the dark. Easy to use