So, I would start with this:
1. a watercraft equipped with hydrofoils that uses an electric motor or motors for propulsion.
2. to ride on or operate such a watercraft
and continue with some info from their website: Kai Concepts is a team of creative problem solvers with a unique combination of backgrounds in engineering, manufacturing, inflatable design, competitive windsurfing and kitesurfing, multimedia production, and software development. Led by Don Montague, our Bay Area team has pushed the limits of water sports innovation for years.
Credit: ➔ jetfoiler.com