27Mhz drahtlose Maus JL-M918

1.this product is used worldwide 27mhz radio waves for data transmission design . 2.the full enjoyment of 1.2m of the wireless space. 3.Automatic sleep function ,save power and prolong battery life 4.the receiver can be stored into the mouse body 5.working on any surface except glass and mirror 6.size:80*50.6*30.4mm weight: 55gr/set 7.compatible with operating systems windows 95/98 2000/NT/ME/XP.and dose not require drivers 8.Packing:inner-each one carton with polybag outer-standard carton white box 100pcs/corton