... design, multifunctional ,fashion and slim* Using as mouse pad, calculator,USB HUB, speakers * 5 USB HUBS (one in ,four out )* ... and home, etc.* Multifunctional mouse pad calculator with mini speaker* 12-Digital arithmetic, ultrathin touch screen button* Power Source: 1xAG10(for ... Blue mood light* Memory calculation: M+,M-,MRC* Mouse Pad: Plastic housing material* 5 USB HUBS (one in ,four out )Version 2 ...