... 1 mutifunctional mouse pad, 2 mouse pad with calculator,4 port usb hub 3 CE,ROHS ,OEM,ODM ,are optio mouse pad with speakerUSB HUB Mouse Pad with ... Speaker,4USB2.0 or 1.1 HUB,1 mini speaker and one MIC ... ,with headset&Mic jack,multifuction mouse pad R ...