LOGITECH WIRELESS DESKTOP MK220 INT 80000596 920-003168 Product Description: Logitech Wireless Combo MK220 - keyboard and mouse set - International English Input Device Device Type: Keyboard and mouse set Interface: 2.4 GHz Wireless Receiver: USB wireless receiver Connectivity Technology: Wireless Localization and Layout: International English Pointing Device: Mouse - optical Features: Scrolling wheel, wireless Microsoft Certification: Compatible with Windows 7 Manufacturer Warranty: 3-year warranty