This digital LED alarm clock is made of , which can withstand use. Features the ABS material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: White -Material: ABS -Size: 16.00X6.00X3.50cm/6.29X2.36X1.38in Display: LED display 12/24 hour Date display, month, day, year, (from 2000 to 2099) Alarm/snooze Temperature unit: degree centigrade/ fahrenheit scale(Celsius/Fahrenheit) Temperature range: -10 degree centigrade ~ 50 degree centigrade Third-gear brightness adjustment: light, dark, off Time memory: powered by 3 AAA batteries(not included) Function key: MODE, ALARM, /LIGHT, UP, DOWN Power supply: 3 AAA batteries (not included) or USB cable (including in general) - LED mirror screen, brightness adjustment according to different time period. - Powered by AAA batteries (no included) or USB cable, the screen will always on while plugging in USB cable. - Create a peaceful sleep environment without or any annoying sounds interfering with your sleep. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install. - It is manufactured with technology to ensure the high- of the product and can work for a long time. Package list: 1 x alarm clock 1 x instruction 1 x charging cable