[fhhhstix]

The original AR6100 will work or the AR6100B which is the replacement for the SR helicopter. The 7 and 8 Ch's will work as well. You can use 2 receivers to do it if you have an AR6000 and a BR6000 you can use the two together just put two functions on one and two on the other but it can't be two AR's or two BR's they have to be different and they have to be the same number series such as 6000 or 6110 however a 7ch is the same price as two six's so you would be better off buying the one and not having to mess with two. If 6Ch's are enough then look for or order the AR6100B it is cheaper than the 7 and it will work with the MFU the only issue I have found is that the horn doesn't always honk when you push the stick but other than that it work perfect.

Travis