Mini keyboard ,Keboard with mouse ,presenter with 2.4G Products overview:This is a wonderful combo.2.4GHz wireless mini keyboard ,Touchpad. mouse and laser presenter combo with usb interface receiver.specifications:Measurements:152*59*13mmWeight:100g/0.22poundOperating range: up to 10meters/30feetTransmit power:+4db Max.Operation voltage:3.3vOperation current:<80mWCharging current<300mWSleep ...