2 ms·

Which wireless over ultrasound scam? I haven't seen anything about that one.

• OopsCriticality 11y ago
  uBeam---the laws of physics are not favorable to their technology working as claimed.
  • Florin_Andrei 11y ago
    It would work pretty well underwater.
    • meatysnapper 11y ago
      and that sort of technology has been used by the Navy since how long?