The BL 509 Bird Launcher is a must for those who are looking to simulate real hunting situations in a controlled environment. Loaded with features, like an Easy-Load trap door and a transmitter capable of controlling up to 16 launchers, the BL series Bird Launcher is an effective and essential tool in your dog's training program. FeaturesEasy-Load Trap Door for safe and easy loading of birdsTrap Door allows loading of multiple birds and unloading of unused birdsQuiet-Release prevents "spooking" your dogHigh quality nets/springs for effective launching and durabilityLarge scent holes - Up to 700 yard remote rangeRemote Transmitter can control up to 16 different launchersAdd-On remote launchers are easy to program to transmitterBeeper/Locator on remote receiver make them easy to findBL 500 series good for quail/pigeon size birds