... is powful cost low, good quality and b 2.4G wireless optical MouseFirst ,the product descriptionThe 2.4G cordless products, transmission range of up to ... . Second, to achieve functional1. For yardsBe Dongle access PC, the system automatically install the drivers, press Mouse-side of the code ... . After the shift by the system g. of the code by the system h. Mouse Wheel7. 2 LED lights, one for the ...