[4Channels]Each of the 4 channels can be set respectively, supporting mixed control of 1 and 2 channels. [Used For] GA-4H-TX RC Transmitter perfect used for RC Car Boat Tank model, 2.4GHz Frequency 4CH channel. Stable control your model 200-300m, works and protect when it out of control. [Multi-suitable]Compatible with a variety of vehicles, suitable for RC cars, RC boats and RC tanks. [2.4G Technology]2.4ghz wireless controller, FHSS 67 channels frequency-hopping spread spectrum, highly to anti-jamming. With brake and fail safe, out of control protection function.