2.4GHz Wireless Multimedia Keyboard & Mouse Combo *8M~10M effective working distance*Big size ,with Volume adjustment button*103 keys + 14 hot keys for easy Internet access and multimediafunctions, 460*210*32mm*Any language layout is available*6D mouse, 800/1200/1600 DPI shifting*Mouse size: 109*75*38 mm*Compatible with Windows 98/NT/ME/2000/XP/VISTA/7/8/10