You can, it just makes the environment inhospitable for humans and requires orders of magnitude more energy than just what would be used to transmit the sound waves.<p>If you mean hyper-localization, that would be a new scientific phenomenon and one worth a great deal more to the world than as a wireless charging technique.  The best industrial manufacturing techniques utilizing ultra-sonic arrays can do some amazing things but they:<p>1) Make the environment inhospitable to humans<p>2) Don&#x27;t actually change the &quot;relevant characteristics&quot; of air so much as force a specific resonant behavior to allow them to target the energy at specific locations.<p>What specific &quot;relevant characteristics&quot; of air would you be changing?  How do we then leverage changing of said characteristic to achieve our desired result?  It would help if you utilized the terminology from the &quot;Gas&quot; Wikipedia page, a cursory glance and it appears to be comprehensive (from a concept perspective) [0]<p>[0] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gas" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gas</a>