Haydels Deer Variable Tone Deer Grunt. Highly effective when used in conjunction with rattling. Specifications for Haydels VDG92 Deer Variable Tone Deer Grunt: Mfg Item Num: VDG92 Supplier SKU: 81065 Category: GAME CALLS Type: Deer Call Species: Whitetail Material: Acrylic/Collapsible Hose Battery: None The Haydels VDG92 Deer Variable Tone Deer Grunt is a quality addition to the Haydels lineup. For more great deals on Game calls on sale and available for your next hunting trip by Haydels please browse our Haydels Hunting Gear page.