There are 3 modes of backlight, and it changes into 7 colors gradually by each touch. The light lasts for 5 seconds, and then it goes off.
## Product Description
● Desktop 7 Color Digital LED LCD Alarm Clock + Thermometer.
● Display year, month, time and temperature by turns on large LCD screen, easy to read LCD display.
● Choose from 7 different colors for background display.
● Powered by 3AAA batteries (not included).
● Sleek and compact design digital alarm clock.
● Package included: 1Colorful Alarm Digital projector clock. 1English Manual.