... Mousepad Decription:Multifunctional Computer Mouse Pad combined mouse pad, calculator and USB hub in one unit Made of plastic material, it is lightweight ... Mouse Pad displays 10 Digits, easy to read screen display and big numbers Calculator is powered by 1 x LR44 button ... , MP3, etc. Connect PC with this Computer USB Hub, the rim, screen, and calculator buttons will give out blue light, very charming ...