Best launcher receiver available. Traded in my TriTronics, which didn't have very good range, the sound maker quits after a while and they aren't water resistant (or warrantied if they get wet). After 15 years training retrievers and using both, the Dogtra receivers are the best. I use them on both Zinger Wingers and Gunners Up launchers. BTW, Gunner's Up are the most dependable launchers I've found.