... 4:CE,ROHS,FCC wireless optical mouseProducts Descriptions 1. 2.4G corresponding with ISM(industrial, medical, industry)frequency automatic ... requirements, effectively avoid the interference between the wireless devices 2. 2.4G wirelesstransmission can reach 10 meters barrier-free distance 3. ... 8mm 7. Key force70±5g 8. Key life8000,000times 9. Rated voltage/currentDC 3V/13mA 10. Power supply mode2AAA ...