It's a park-flyer radio, the 2.4ghz type. Only good for about 2500 feet distance as I've read.
According to the advert it seems to be only good for electrics. Hope thats what you have in mind.
IAs far as I'm concerned, I would wait a while to see how the wind blows on this technoloy
before investing. If you got money burning a hole in your pocket, go for it!