Improved cursor tracking on any surface compared to optical mice. Six-button ergonomic laser scroll mouse with four-way scroll wheel. Internet Browser forward and backward button. 8001600 dpi resolution switchable. Right handed finger grooves with rubber grips provides ergonomic support. ConnectorPortInterface: USB; LeftRight Hand Use: Right; Mouse Technology: Laser. Part Numbers:IVR-61012 INVERA 6 BUTTON ERGONOMIC LASER MOUSE WUSB CONNECTIVITY, BLACK UPC: 686024610120