Specification:Display type: LED digital.Product size: Approx. 72x40x18mm/2.83x1.57x0.7inch.Temperature range: -9C to 50C.Working voltage: 5V.Screen size: 3.1inch.Color: Show as picture.Battery: 1xCR2032 battery(not included).Note:There might be a few color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.If the screen of the product received is scratched, please tear off the protective film.If your screen turns off suddenly, please check if you have set "on Sd" this mode to power saving mode, it will turn off and turn on automatically. Return to "Sd" mode, which will always be displayed on the LED.If the USB cable and adapter still do not work after you receive the product, please check if it is 5V.Package Includes:1 Piece LED Mirror Clock(with 1 Piece USB Cable, 1 Piece User Manual). Rechargeable: This decoration wake up device can be charged with USB cable, and the long time standby can meet your whole day usage. Fit occasions: The USB rechargeable alarm has a wide range of using application, such as bedroom, living room and your office. Decoration: The desktop electronic alarm is designed to be stylish, so that is suitable to be used as a desktop ornament to make your house become more fashionable. Material: This LED mirror clock uses plastic as the material, which is lightweight and portable, so that you can take it outside when you are traveling. Temperature display: The digital electric clock has a temperature display function, which you can know the weather when you wake up and you can choose the clothes what you want to wear.