5 ms·

Right, and they were superseded by battery-powered infrared remotes for good reasons. I would recommend revisiting those reasons before proposing this sort of

• alnwlsn 5mo ago
  Mostly it was that electronics got cheap enough that you didn't need to keep building the bulky and expensive mechanical version. The first wireless remotes that used batteries were still ultrasonic, they just generated the tone electronically instead of by striking a metal bar. Plus, you could have way more buttons with an electric version; you would need a bar per function for the mechanical way.
• jacquesm 5mo ago
  And that's just signalling, not power delivery.