Not sure you want to sound like a real gobbler. I use Red Wolfs gobble tube. It is the best tube out there in my opinion. None of them sound completely realistic. It all about the cadence and the rhythm. I can tell you that this has been an unbelievable tool for me. I can credit many a long beard that was convinced his girlfriend was about to be stolen by that rotten mouthed jake, and found a Browning 3 1/2" instead. Always use caution when gobble tubing. But like you say they don't really sound authentic.