Power Calls 28851 Spark Open Call Specklebelly Sounds Attracts Geese Stealth Black Acrylic Power-Calls Big Bore Specklebelly Goose Call Is Designed To Have The Full Range And Volume Of a Specklebelly Goose While maintaining User-Friendly Operation With Its Built-In Back Pressure. Our Pan Style Gut incorporates a Shallow, But Super Wide Tone Channel So You Can Insure That Every Ounce Of Effort You Put Into This Call Will Be Transferred Into Sound. What You Get as a Result Are Loud Ear-Piercing yodels, Soft clucks And murmurs With Ease. Specifications: - Type: Geese Call - Material: Acrylic - Color: Black