With its built-in wrist support and neutral grip, the ergonomist-approved Pro Fit Ergo Wired Mouse positions your hand for improved comfort. Features include quiet clicking, plug & play USB connection, five buttons (including forward and back), and four DPI settings (1000/1600/2400/3200). USB mouse host interface allows powerful and efficient transfer of data with maximum productivity USB interface allows easy connectivity Comes in black product color for a trendy, sophisticated look Provides dependable and improved responsive feedback to ensure maximum reliability.