5 Gigahertz is a radio frequency <e1>band</e1> that is used by 802.11a/n Wi-Fi <e2>products</e2>.
5 Gigahertz is a
5 Gigahertz is a radio frequency band that is used by 802.11a/n Wi-Fi products.
<triplet> band <subject> products <object> Instrument-Agency(e1,e2)