Product name: Wheel alarm clock Product size: alarm clock length 13.5CM, wheel diameter: 9CM Product packaging: 16.5*11.5*10.5CM Product net weight: 332 grams Color: yellow/pink/white/black Battery: Four AAA batteries (not included) Features: The two big wheels will start as soon as the time is up, which means that they will be gone without a trace. This rolling alarm clock is very interesting. It has two wheels. During the wake-up time you set, in addition to beeping like a normal alarm clock, it will roll away on its own. As for where to roll, it is said that even It doesn't know it by itself. If you want it to shut up, you have to get up immediately and catch it before it disappears at a certain point. Notice: 1. The alarm clock will keep running forward and put it in the corner of the bedside table facing outward 2. The alarm clock can be adjusted from a 3-foot-high bedside table, so dont put it too high. The cabinet height should not exceed 3 feet. 3. The alarm clock can run on wooden floors and most carpets, but we don't recommend using thick pile or thick carpets. 4. The alarm clock will run in different directions for about 30 seconds, until it finds a place to rest. When the alarm clock moves and sounds, the backlight will flash. 5. Sometimes, when the alarm clock hits the wall, it spins. 6. After running, the alarm clock will continue to beep for 9 minutes, or turn off the alarm until you get up. 7. The language of the alarm clock, combined with the beep of an ordinary alarm clock 8. Find the alarm clock and put it back on your bedside table. Dont let it sit on the floor. 9. When looking at the time at night, you can press any key to activate the backlight for 3 seconds. 10. During low battery warning, the clock will flash in advance. You are warned that it is time to change the battery.