This i-Rocks RF-6572 2.4GHz Wireless Keyboard Mouse Combo uses the latest 2.4GHz ISM RF and FHSS (Frequency Hopping Spread Spectrum) anti-jamming technology with 8,388,608 unique IDs and 4 automatically selected channels to eliminate any possible interference from other wireless devices, radio frequency, or microwave. The 2.4GHz ISM RF Digital Radio technology allows this RF-6572 to stay connected within 15m., 49ft. radius. The 2.4GHz wireless communication link operates in the 2400 - 2483 MHz frequency band available unlicensed worldwide for Industrial, Scientific and Medical (ISM) applications.2Q49834. 9834. Buslink Buslink 2.4GHz Wireless Keyboard and Optical Mouse.