ScubaJet - Turn water sports equipment into a jet powered watercraft

I want to strap 2 of these to my legs with the controls on my wrists.

This looks quite cool! Wish I owned a SUP or kayak.

First I had a problem with the remote control, now is the motor, incredible, not buy it.

Pros:

The design

Cons:

Doesn't work, it's impossible that it works and technical service doesn't answer