Specifications: Model:HJ-CEA-1494 Power supply: USB power supply / 2x AAA (not included) Material: ABS + PC Size: about 170x 93mm (1)"-","+":Mainly used to adjust the brightness, change the light color, FM channel search, set the time; (2)Sun logo button: white and lantern switch button: lantern mode (can be automatically converted to 7 colorful, can also touch + or - select a single color) .; white light mode (brightness of 10 adjustable, touch + or - can be adjusted); (3)Sunset and Sunrise setting button:when open the sunrise timing,it will display a sign;no sign display showing the sunset timing off(When the sunset timing symbol is turned on, the sunset time setting time is displayed for 2 seconds and then returns to the current clock time),Press the key to enter the sunset light timer setting mode, the default hours flashing, press the key to adjust the alarm time, and then short press to confirm; minutes flash, enter the minute setting, press to adjust,finish the setting.; Features: 7 Colorful Lights+10 Levels of White Light Brightness:You can adjust the brightness to personal perference; Unique New Sunset Function:Before 30 minutes the setting sunset time,the white light will from 100% to turn off,the Sunset function guides you to natural, restful sleep; Multifunction:Sunrise & sunset simulation Wake-Up Light + Alarm clock + FM radio;It have 2 types for power supply: DC, link the power outlet; AC, 2 7 batteries or USB connected to the computer, mobile power; 6 Alarm Clock Sounds+FM Radio+Snooze:You can choose 6 different sounds to be alarm clock ring;Or you can choose your favorite FM;Snooze function is available and repeats in every 5 minutes; Package Includes: 1 x Sunrise Alarm Clock 1 x USB Cable Notice: 1.The colors may have different as the difference display, please understand. 2. Please allow 1-3cm error due to manual measurement, please make sure you do not mind before you buy.