Lenovo Optical Mouse 06P4069 Enjoy the precision and accuracy of optical technology. This mouse eliminates the mechanical ball and need for a mousepad, while the integrated wheel lets you scroll through documents and Web pages at the touch of a finger. Features Full-sized mouse utilizes optical tracking technology for precision control Integrated wheel scrolling device No mousepad required: Works on many types of surfaces, No mechanical ball to get dusty, dirty or lost Business Black color compliments ThinkCentre and ThinkPad systems Fits comfortably in either hand Same mouse that is included with select ThinkCentre desktop systems Backed by renowned IBM Service and Support Specifications:Standard features Mouse USB Optical Wheel Mouse Pointing Device Type USB Optical Wheel Mouse Mice/Input Devices Cable Length 6.0 Feet Connector Style USB Number of Buttons 3 Pointing Device Resolution 400 DPI Pointing Device Type USB Optical Wheel Mouse Environmental Information Maximum Operating YYYY 80 % Maximum Operating Temperature 40 C Minimum Operating HumidityXXX 8 % Minimum Operating Temperature 0 C Architecture Depth Metric 114 mm Height Metric 32 mm Height US 1.25 in Weight Metric[2] 0.094 Kg Weight US[2] 0.2 lbs Width Metric 54 mm Width US 2.13 in