Verbatim Optical Desktop Mouse - 1000 dpi, 5-button programmable (96148) Design: Contour, Design: Symmetrical, Dimensions: 1.56" Height x 2.38" Width x 5" Depth, Movement Detection: Optical, Movement Resolution: 1000 dpi, Pointing Device Wireless Technology: Not Applicable, Scroller: Scroll Wheel, Standard Warranty: 1 Year Limited Sold as 1 each