Echo acrylic open water duck call is great for longer distances when hunting on big lakes or open fields.These calls generate a ringing hail call that will attract ducks at several hundred yards yet they are also very ducky and blow soft when the ducks are in close.Calls: DucksSpecies: DucksMaterial: AcrylicSound Species: Mallard HenElectronic: NoColor: Dark GreenStyle: Single ReedHands Free: NoSounds: Mallard Hen