m20 wired mice 1200dpi computer office mouse matte black usb gaming mice for pc notebook lap

dpi:1200 dpi
supported system: windows 98/xp/vista/7/8
cable length:100cm
super mini size:9cm x 5cm x 3cm (l*w*h) compatible for windows 98 / xp / vista / 7 / 8 or latest.
intelligent connectivity, no need to code, plug and play.
specifications:
connection way: usb cable 3 buttons, including scroll wheel, left button, right button
it adopts ergonomic design which is suitable for most people's hand feeling and ensures you cannot feel fatigued after working for a long time..syi