... 2.4G wireless optical mouse 1:working distance:10meters 2:scanning speed:1500-3000/second 3:OEM services 4:CE,ROHS,FCC wireless ... 2.4G corresponding with ISM(industrial, medical, industry)frequency automatic frequency hopping requirements, effectively avoid the interference between the wireless devices 2. 2.4G ... unplug receiver or shutdown, etc, the mouse, keyboard, can get into the deep dormancyquickly ...