Check the listing for details. D.T. Systems Bird Launcher BL 509. Color: Black, Condition: New. Listed at 449.79 USD. 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.Easy-load trap door for easy loading/unloading; quiet release system prevents "spooking" dog; high quality nets and springs for effective launchingLarge scent holes for natural scent flow1 transmitter (with up to 700 yard range) included-controls up to 16 remote launchers; transmitter and receiver use regular 9-volt batteries (not included) and are weather resistantStandard size for quails, pidgeons, etc.Beeper locator on launcher makes it easy to findEasy-load trap door for safe and easy loading or unloading of birdsQuiet release system prevents spooking your dogHigh quality nets and springs for effective launching