The new bird launcher electronics from Dogtra offer a wide range of new features. They are compatible with Dogtra PL, QL, and QL2 launchers. Each transmitter will operate up to sixteen launchers and the receiver will operate two launchers with the use of a 15-foot jumper cord. Each receiver includes an attention-getting quack or beep. The range is up to one mile and the transmitter is waterproof and the receiver is water-resistant. Available accessories include an external speaker and extension wiring cord.