[Zenst]

Your instinct is spot on - it does not, and just does high frequencies in the RF range using acoustic resonance to amplify instead of using electrical amplification. https://en.wikipedia.org/wiki/Acoustic_resonance

One big aspect of this is that is from what can tell, has lower noise and with that a pre-amp/amp that has less noise in the RF domain is epic, it will allow lower power to be used for transmit and also offer longer range at the same power used today. But an amplification that has less noise than existing electrical only options has so many uses that for discovery - I'd rank this up there with graphite.