Watch Caixing. Cx 2158r BlueDimensi : 21,5 cm x 10 cm x 3 cm- Desktop alarm clock tells time, date, month, temperature system, the red LED screen.- LED Display Size 1.8 inch LED display temperature, time, date, month size 0.8-inch appliance 220V. Through the power transformer and can be used with car cigarette lighter.- Watch the local memory in case the power goes out. (But the screen is not displayed in lights. Battery power will serve the system clock to go on without the power house. And the screen displays the current time as soon as the regular house lights.)- A display that can be seen clearly. Both day and night.- Can set an alarm all 8 times.- 22:00 to 7:00 pm at the time clock to reduce lighting by half. Not interfere with the light while sleeping.