The Dogtra Extra Receiver features two sound modes authentic mallard duck-call attention getter or a beep-locater sound. The receiver can operate two launchers with the use of a 15 foot jumper cord. The extra receiver is water resistant and are programmable, so you can start with a smaller system and later add launchers without having them specially built to match your system.
Features: Multiple Sound Modes Realistic Duck Call For Retriever Training Beep Sound is Handy For Locating The Launcher 1-Mile Range Advanced 2 Port System so You Can Run 2 Launchers Off 1 Receiver Water Resistant Receiver User Friendly Coding Add Extra Receivers & Match Them Anywhere, Any Time Long Lasting Rechargeable Ni-MH Batteries Multi Colored LED Light Battery Life Indicator Includes: Receiver (1) Battery Charger Code Setting Guide Numbering Stickers