ORIGINAL: hyrulejedi86
The description says that the ESC is a receiver/ESC combo in one unit.... That's what I was confused about.
Actually that is correct, the AR6400 does indeed have an integrated ESC and microservos, so it must be used with a Spektrum/JR TX.
If you don't want to get a RTF setup, check out the small foamies over at BPHobbies.