Here is a clock who has the function about counts down and up. "YGH118P" Having this clock you can do something more productive. In fact , not only in children study ,in our work can be used.

people imperfect is perfect

A weather station is a device that collects data related to the weather and environment using many different sensors. Weather stations are also called weather centers, personal weather stations, professional weather stations, home weather station, weather forecaster and forecasters.

With a projection clock in your room, you can view the time from anywhere. There is no need to be at a certain distance from the clock and neither do you have to squint.

A projector on top of the digital clock projects large, clear numbers onto a wall or ceiling. It allows you to easily read the time on the ceiling instead of lying on the bed and twisting to see the clock. The red ceiling projection lamp is soft and undisturbed. The time direction of the ceiling surface can be adjusted by 180°, and the optimal projection distance is 2-3 meters / 80-12 inches.