The sleek design complements your favorite HP devices, and fits comfortably anywhere. The 2.4GHz wireless connection reliably keeps you hooked up. With up to 16 months of life on a single AA battery, this mouse was designed to push the limits. Blue LED technology lets your mouse function on a wide range of surfaces, so you can work from almost anywhere.1,200 optical sensors give you exceptional accuracy and incredible speed. Just pop in the battery, plug in the USB receiver, and you're good to go. No need to install anything. The USB receiver fits conveniently inside the mouse, for effortless portability. HP Z3700 Black Wireless Mouse Size: 3.98 x 2.37 x 1 in. Color: Black.