Started with an Acme Thunderer in 1978. In cold weather it would stick to your lips, and the pea would sometimes freeze. Went to a Gonia in 2000. The plastic was easier on the lips, but the pea sometimes froze. I'm now sold on the Fox 40. No pea, no freezing, and you can't overblow it. If it's good enough for our military, it's good enough for Jack and I. It is extremely LOUD, and could ruin your hearing in short order. I cup my hands around it, forming a megaphone, to protect my hearing. Like Jim said, carry a backup on your lanyard.