As a usb There are special functions as a digital clock. Works by using solar energy. Can change color according to the temperature outside. Low temperature and high temperature, there will be a light to dark.
Usb is a special function as a digital clock. Works using solar energy can change color according to the temperature outside temperature is low light and high temperatures were to be dark.
A USB have special function as a digital clock. Work using solar energy.Can change color according to the temperature outside.Low temperature will be light and high temperature will be dark.