made in china

mode:M3388U-1,PANDA,M3688U-2 LADYBUG ,M3688U-3 TIGER
   1.800dpi
   2.for microsoft WIN95/98/ME/2000/XP
   3.USB receiver, PNP

   4.charge bettery:AAA x 2
   5.27Mhz.ID code:255set.

   6.effect distance 1 meter