Whether youre preparing your dog for hunting season or competitions, Dogtras RR Deluxe boasts the advanced technology you need to be sure your four-legged huntin buddy is ready to go.Two-port system lets you run up to two launchers off one receiver. Features a realistic duck call thats ideal for retriever training and a beeper that makes it easy to locate the launcher during upland training in thick cover. Designed for the Dogtra PL and QL bird launchers, but is compatible with most aftermarket bird/bumper launcher system. Run up to 16 launchers on one transmitter. One-mile range. Multicolored LED battery-life indicator lets you know when its time to put the rechargeable Ni-MH batteries (included) back on the charger (included). Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Game Calls.