(yes this is stupid and I hate it)

Listen I follow gadgets and I have never heard of a large ultrasonic knife like this. Let alone one that needed firmware.

This isn't just silly I think it's likely deeply fraudulent.

an Internet of Shit hall of shame, if you call it like that.

(and ofc such companies should be brought to bankruptcy bc those jokes have gone too far)

Knives. Don't. Need. Firmware.

If, for some reason you feel the need to have the knife vibrate while cutting up food, you only really need a little motor, a battery, and a switch - maybe a slide switch with several settings and some resistors. Nothing that couldn't have been made in the 1950's.

Anything more is a result of failure to ask the "Should we do this?" question.

I bet my $60 santoku handily outperforms that shiny toy, and won't be obsolete in half a century.

And, the vibroknife is +1 against body armour, if I recall correctly.