The Tramplifier family offers a combination of an acrylic barrel, soundboard, and reed that produces very clear notes of cow and calf mews and chirps. The open single reed reproduces the high pitches of cows and calves, taking all the guesswork out of locating those bulls. The Long Range Tramplifier is specifically designed with an acrylic barrel that lets this call reach out and touch them! The loudest open reed call we have ever designed!