Question: what rc transmitter to buy?
Answer: #1. ... 
Flysky FS-GT5 6CH AFHDS RC Transmitter w/ FS-BS6 Receiver for RC Car Boat. ... 
Radiolink RC4GS 2.4G 4 Channels RC Transmitter and Receiver R6FG Gyro Radio Remote… ... 
Flysky FS-i6X 10CH 2.4GHz AFHDS RC Transmitter w/ FS-iA6B Receiver.