Haydels Duck Compensator Speck. Find more of the highest quality game calls for your next hunt including more of the best goose calls around. Specifications for Haydels CS03 Duck Compensator Speck: Mfg Item Num: CS03 Supplier SKU: 81182 Category: GAME CALLS Type: Reed Call Species: Geese Material: Acrylic Battery: None The Haydels CS03 Duck Compensator Speck is a quality addition to the Haydels lineup. For more great deals on Goose Calls by Haydels please browse our Haydels Hunting Gear page.