Product Description Name The rolling alarm clock Size 138.58.5cm Black color Battery 4aa not included 1. The alarm clock is constantly moving forward, place it in the corner of the bedside table outward, it is not recommended to place it high. 4. The alarm clock will run in different directions for about 30 seconds until it finds a place to rest. The rear light will flash when the alarm clock goes and rings. 5. Turn occasionally when the alarm hits the wall. 6. After running, the alarm will continue to tuk tuk for 8 minutes or until you get up and turn off the alarm. 7. The alarm sound, combined with the regular alarm tube to find the alarm, then put it back in the bedside table, do not leave it on the floor. 8. Find the alarm and put it back in the bedside table, do not leave it on the floor. 9. When you look at the time at night, you can press any button to start the backlight for 3 seconds. 10. When the warning level is too low, the clock will flash in advance. Warning it is time to change the battery. Package includes 1 alarm clock