"System Includes: (1) Pro Control Transmitter (1) Pro Control Receiver (1) Pro Control Extension Cord Teach your dog to point more solidly, stand more staunchly, and perform with more style. The newly designed Pro Control System gives you complete control when you're simulating hunting conditions during training sessions. Start with one transmitter and one receiver. Purchase additional receivers as your training needs grow. The new receiver is field-settable - quickly and easily expand your system by setting additional receivers to your transmitter with the press of a button. No need to send your system back to the factory or call in your serial number. The receiver is easily mounted on numerous brands of Bird Launchers, Back Off-By Jack pop-up dogTM, or other compatible equipment. Receivers also include your choice of several attention-getting or location sounds, including a duck call. "
