Couple of things.
#1 is the frequency. Uk uses 35 right? Over on this side of the pond it's 27 for the, ummmm less expensive versions. And it's 72 for the big boys. And that's just FM.

#2 is the Tx airplane compatible. It might be only Heli compatible. May not have the goodies inside to do mixing for elevons and V tail, and such. And may have stuff for heli operation you can't turn off.

Give the guys at Venom a call or e-mail. They've always been quick on the replies and HONEST.