Woodhaven’s Black Venom diaphragm call is one of the most versatile calls yet. The Black Venom features a copperhead cut with new side cuts in the orange latex top reed. The orange latex top reed combined with a prophylactic reed and a bottom reed of gray latex makes for one of the most versatile diaphragm calls yet. Soft, nasal greeting yelps and contented purrs and clucks flow easily with light air pressure; but turn raspy and demanding with increased air.