Put your money where your mouse is: Precision-engineered optical device is a smart investment, providing comfortable, contoured, and cordless operation at a range of up to 18 feet. Enjoy responsive 2.4-GHz wireless connectivity enhanced by adjustable cursor sensitivity (800 or 1,600 dpi). Includes left and right buttons, center scroll wheel, pairing USB nano receiver (no extra software required), and a disposable AA battery. 4.5” x 2.5” x 1.25”. Black. Laser-engraved Cummins “C” logo center area.