The Dogtra Additional Quail Launcher with Receiver is available to take your Dogtra RR Deluxe launcher transmitter from being a one-launcher system to anywhere from simply two to the maximum of eight launchers. The basket is designed for maximum air flow to provide a quality bird scenting experience for your dog in training steady-to-shot in pointers and sit-to-flush in retrievers. This unit has a quiet launch to retain an authentic field scenario and operates on rechargeable Ni-MH batteries with a three color LED battery life indicator light. The launcher basket has an adjustable height launch and the receiver is water resistant. The basket measures 8.6 in. long x 4.5 in. wide x 4.3 in. high.