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 and Benefits:· 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 General Model name 06P4069 Description IBM USB Optical Wheel Mouse Architecture Depth Metric 114 mm Depth US 4.5 in Height Metric 32 mm Height US 1.25 in Weight Metric[] 0.094 Kg Weight US[] 0.2 lbs Width Metric 54 mm Width US 2.13 in Mice/Input Devices Pointing Device Type IBM USB Optical Wheel Mouse Cable Length 6.0 Feet Connector Style USB Number of Buttons 3 Pointing Device Resolution 400 DPI Limited warranty[] Limited warranty period One year Weight & dimensions Depth 4.5 in Height 1.25 in Width 2.13 in Weight[] 0.2 lbs Standard features Mouse IBM USB Optical Wheel Mouse Pointing Device Type IBM USB Optical Wheel Mouse Environmental Information Maximum Operating Humidity 80 % Maximum Operating Temperature 40 C Minimum Operating Humidity 8 % Minimum Operating Temperature 0 C