[Auto Dimming and 10 Optional Brightness] Equipped with a light sensor, the wall clock can automatically adjust the digit brightness as the ambient light changes. You can also choose one of 10 fixed brightness levels. [7 Colors of Sec Hand Display] The clock gradually light up an additional colored light clockwise every second, representing the running of the second hand, and it repeat itself after completing a circle. Very beautiful and stylish. [10inch Round Digital Wall Clock] 10-inch LED large display, 3.2-inch time digit, makes it easy to check the time from anywhere in the room. Meet your need to track time, date, day of the week and temperature at any time. [Two Main Area Display Modes] One is carousel display Time→Date→Temperature, and the other is only display Time. One is versatility and the other is , the choice is yours. [ Wall Clock] Comes with a 5V 1A adapter, the clock is ONLY powered by plugging into an outlet, NOT battery operated. 2xAAA batteries (not included) are only used to memorize the settings, not for on-screen display.