... play music, 4 port usb 1.1 hub, 2 stereo speaker 1,USB1.1 compatible, support data tansfer rate of 1 ... up to 127Hi-speed devices.5,comes with 2 stereo speaker with 3.5mm plug.6,power on/off switch button7 ... ,LED indicator for on/off8,mircophone and speaker output.9,internal microphone for direct talk on internet.10 ... adapter(no included) USB1.1 music mouse pad 2 stereo speaker Mic 4 hub