3 Button Optical Mouse:Featuring a highly sensitive 1000 dpi sensor for perfect precision on almost all surfaces. The symmetrical design of this 3 button optical mouse ensures a comfortable grip for both left- and right-handed users.4 Button Optical Mouse:Features a button to toggle sensor sensitivity from 1000 to 1600 dpi to suit your preferences. The symmetrical, full-size mouse design of this 4 button optical mouse ensures a comfortable grip in your hand.5 Button Optical Scroll Mouse:This wireless scroll mouse uses a 2.4 GHz wireless connection with 10m range to free your desktop of cables. It features five buttons including two thumb buttons, and a high resolution 1000 dpi optical sensor for precise use.
