16.2 Inch Large LED Display The digital clock has a 16.2 inch large screen display, 4 inch high contrast clear jumbo digits make it much easier to read even from a distance and from all angles. Here are all the features that you might expect for a digital wall clock: Time, Date, Week, and Temperature. ATTENTION: Must be plugged in to work. Not battery operated. 10 Levels Automatic Brightness Dimmer With 10-level adjustable brightness display, you can easily adjust to a comfortable brightness manually by using the remote control. The LED clock has a built-in automatic dimming sensor, which can also automatically adjust the brightness as the light changes, smart to provide you with the needs.