The Echo Calls 77725 Open Water Double Reed Duck Call is a durable polycarbonate call designed for hunters seeking versatility and tonal richness. Crafted from smoke gray polycarbonate, this call produces loud, ringing hail calls ideal for reaching ducks in expansive open water. Additionally, it delivers soft, raspy tones perfect for finishing wary mallards in close quarters. Its double reed design offers a wide range of sounds, from aggressive to subtle, accommodating various hunting scenarios.