To make sure
: the tranny you get with the PZ micro RTFs/ HZ Champ works with all the micros only, not on the big birds. On these included microRTF transmitters you can punch in a reduced dual rate (70% of servo throw in addition to the standard,100%) for beginning flights with the new bird till you're familiar with it. BUT you cannot change EXPO to reduce sensitivity around the stick's center.I got a DX6i specifically so I can tune EXPO and also fly the big PZ and other birds.But that's just me. I'm a SPAZZ. You probably will do fine with the stock RTF transmitter. There are lots of options.....God bless America!