Adesso introduces relief and comfort for left handed users & gamers with the iMouse E7 USB vertical lefthanded mouse! If your wrist pain just won't seem to go away, try a specially designed vertical mouse that completely changes your stance and keeps your hand in its natural handshaking position. The shape is thoroughly designed for natural comfort and easy-to-reach mouse buttons. No finger stretching or reaching is needed to press or operate the buttons. For gaming, the built in DPI switch on the top allows for convenient adjustment of your browsing precision without even letting go of the Adesso iMouse E7.