Ergonomic, antimicrobial and wireless mouse with the specially designed vertical shape, the Adesso iMouse A20 provides a uniquely comfortable ergonomic mouse experience. Buttons are conveniently located on the side allowing for intuitive control and faster back and forward browsing. The switchable DPI (1000/1600/2400) provides for two levels of control. The iMouse A20 is Plug-and-Play and requires no drivers.