Product description 1.Big Numbers and Pure White LED Lights: It can long-distance readable and identify . Different from other products, this wall clock has pure white LED lights. So you can see the time from most where in your house and has a very good viewing experience in this clock. 2. Adjustable Brightness and Auto Dimmer, Increase Refresh rate: The clock provides adjustable brightness control, you can manually adjust the brightness of the clock according to your own requirements. In the daytime, the clock is bright enough to read, but you dont worry about this clock will bother your sleep in the night. Open the auto dimmer, the clock will adjust the brightness according to the ambient brightness. 3.Sequential and Count Down Function: As a sequential and countdown timer, the wall clock is very easy to read indoors. One button to start the count up. Although the led clock only has 4 numbers, it provides days, hours, minutes and seconds countdown. When you set the countdown to seconds, the clock will display the countdown seconds first, and when the countdown is completed, it will automatically change to the countdown minute. 4.Power Saving, Run by AC Power: Although digital clock has LED, but it very saves power; use AC power supply, do not have to discard AAA batteries, can protect the environment. It can connect many different types of power supply, such as adapter, laptop, PC, power bank. 5.Simple and Modern Design Clock: 3D numbers are very simple and visual, no other frame affects the viewing experience. 12/24 hour display mode can be chosen, just one button in the remote can switch to your favorite time display mode. Whatever the time, calendar or thermometer, you can get the information very visual. Because this is a simple design of the wall clock, so you can put it in most place, airport, bedroom, living room, kitchen, etc.