... 2.0.3. Blue backlight.· Multifunctional Computer Mouse Pad combined mouse pad, calculator and USB hub in one ... material, it is lightweight and portable· The Calculator Mouse Pad displays 10 Digits, easy to read screen ... can be connected with other computer accessories, such as keyboard, mouse, USB flash, MP3, etc.· Connect PC with ... and then the unit is used as a mouse pad· It can also powered by DC 5V ...