LENOVO Professional Wireless Laser Mouse 80008028 4X30H56886 Product Description: Lenovo Professional - mouse - 2.4 GHz - Campus Device Type: Mouse Connectivity Technology: Wireless - 2.4 GHz Dimensions (WxDxH): 6.4 cm x 11.3 cm x 3.4 cm Weight: 80 g Wireless Receiver: USB wireless receiver Movement Detection Technology: Laser Buttons Qty: 5 Movement Resolution: 1600 dpi Features: Scrolling 4-way button Battery: AA Manufacturer Selling Program: Lenovo Campus Manufacturer Warranty: 2-year warranty