I just bought a new laptop lenovo Y500 and it came with a free wireless mouse. The brand is from EagleTec.
Model:
Dozer 2.4g
10001 15001 2000 DPI
Wireless Optical Mouse
the mouse comes with this small NANO USB. I plugged it in but nothing happens. The instructions is in Chinese which sucks for me. And I cant find the turn on and off button in the mouse, don't know even if there is one.