Adesso IMOUSE E2 iMouse E2 Vertical Ergonomic Laser Mouse

Vertical design provides better support for forearm, minimizing wrist pain that can come from twisting; User can quickly & easily adjust dpi resolution (400dpi/800dpi/1600dpi/3200dpi) with switch located beside thumb; Advanced laser sensor allows greater precision in mouse navigation, increases battery life & works on more surfaces than an optical mouse;