... Mousepad calculator speaker and USB Hub Model No.BJL-CE-1038Product NameMouse pad calculator with mini speaker and USB HubSpecial Features * ... , multifunctional ,fashion and slim* Using as mouse pad, calculator,USB HUB, speakers * 5 USB HUBS (one in ,four out )* Blue backlightingMain ... light* Memory calculation: M+,M-,MRC* Mouse Pad: Plastic housing material* 5 USB HUBS (one in ,four out )Version 2 ...