Mouse a4-tech evo opto oscar x710 [a4tmys27923]

- 3xfire button- 5 dpi shift to speed up or slow down the pace of the mouse. click to quickly shift from 400, 800, 1200, 1600 to 2000 dpi.- full-speed usb (designed with extreme fast acceleration up to 500 hz report rate, 4 times faster than the normal usb mouse's report rate.)- intelligent & button.programmable using included smart-x7 software. mouse device interface: usb buttons quantity: 7 movement detection technology: optical scroll: y design colour of product: black ergonomics cable length: 1.8 m packaging data bundled software: smart-x7 other features compatible operating systems: windows 2000 / xp / 2003 / vistaâ¦