After this frankly cringeworthy Flo-Rida Beamz advert, I found this earlier video, with less ‘cool’ factor, same product, and some cheeky imp added some alternate music (Ligeti? John Zorn? John Oswald I think…someone after my own heart!)
If you’re going to wave your hand around, get a Theremin, harder to play but you could get some expression in there, with the non-toy versions at least. Whereas this is the same league as Bontempi organs, stylophones, Optigans, Tronichords et al with their usually unfulfilled promise of musical mastery in minutes.