... 2.support multi-language 3.with usb receiver 4.good quality wireless keyboard and mouse combos Model No. carton size pcs ... ,waterproof,dust prevention and portable.Functional characteristics:wireless keyboard and mouse,with usb receiver,ergonomics design,simple fashion ultra-slim ... surface matted processing,comfortable and anti-skidding.Applicable system: PC system:Suitable for windows 98/2000/Me/NT/XP ...