I am not sure what you are talking about. However, I have the Aerobird Challenger that has, as an option, one made for it and the way it works is when you get close to another Aerobird and push the button, it will cause the Bird you are chasing to lose motor (not controls) for a few seconds, simulating a 'shoot down'! Both planes have to be compatible. I don't know if it works between different Parkzone 'Birds.