... 1) Mouse pad calculator with speaker and USB Hub 2) Using as mouse pad, calculator, USB HUB, speakers 3) Black ... calculator speaker and USB Hub Model No.BJL-CE-1038Product NameMouse pad calculator with mini speaker and USB HubSpecial Features ... * New smart design, multifunctional ,fashion and slim* Using as mouse pad, calculator,USB HUB, speakers * 5 USB ...