Send your voice over light even through windows!
30? to ? mile range!
Receiver drives a speaker or earphone!
Transmits a modulated infrared light beam up to 30 feet without lenses up to ? mile using simple lenses. Since the beam is modulated with a 30 KHz carrier (like AM radio) there is no effect from 60 Hz hum that is produced by indoor lighting. Easily transmits through windows ideal for bugs or listening to IR television remote controls.
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