Q: What's the difference between the JR 11x and the JR 11x zero? A: The 11x is 2.4GHZ dedicated transmitter, this includes a rerceiver. The 11x zero is a module based Transmitter and can be used with 36mhz or 2.4GHZ, module and receiver are sold separately. You can view the JR 11X Radio here. As well as the JR 11X ZERO Radio, and prices start at $649.99 at Modelflight