LENOVO Wireless Keyboard and Mouse (ND) 80008028 4X30M39504 Product Description: Lenovo Essential Wireless Combo - keyboard and mouse set - Nordic Input Device Device Type: Keyboard and mouse set Interface: 2.4 GHz Wireless Receiver: USB wireless receiver Connectivity Technology: Wireless Localization and Layout: Nordic Protection: Spill-resistant Pointing Device: Mouse - wireless - laser Buttons Qty: 3 Manufacturer Warranty: 1-year warranty