esky 2.4 3 in controler Rx work with a esky 2.4 Tx

i seen a honey bee fp with 2.4 g Rx will that work on my falcon 40 if i use it with a e-sky Tx from my belt cp v2 (will it bind?)

You mean about using esky 2.4ghz 4in1 in falcon 40 with belt cp 2.4ghz transmitter? Yes it should bind. But you will need to switch dip switches in transmitter (underneath batteries)