Professional Sound Performance - Delivers devastating bugles, thunderous chuckles, mind-bending screams, and realistic elk vocalizations that challenge bulls and locate elk effectively Thick Wall Construction - Built with thick walls that produce extreme volume without plastic sound, ensuring your bugles carry authentic tones across vast terrain and thick timber Over-Cupped Exhaust Bell - Features over-cupped exhaust bell that creates optimal backpressure and resistance, making it easier to use all types of diaphragms with precise articulation Corrugated Chamber Design - Large corrugations in the chamber provide exceptional resonance and structural integrity while delivering the authentic elk sounds needed for successful hunting Complete Bugle Tube Collection - Choose from Unleashed V2 with dual mouthpiece system for all calling styles, compact Renegade for experienced callers, lightweight Unrivaled for backcountry hunting, or classic Unleashed for traditional bugling Phelps Game Calls Bugle Tube Elk Calls deliver professional-grade elk bugling performance with large corrugations in the chambers that provide exceptional resonance and structural integrity for consistent sound quality across all variations. These expertly crafted bugle tubes feature thick walls that produce extreme volume without any plastic sound, ensuring your bugles carry the authentic tone needed to challenge bulls and locate elk across vast terrain. The corrugated chamber designs not only enhance sound resonance but also provide crucial structure to the tubes for durability in demanding hunting conditions. Built with over-cupped exhaust bells that create optimal backpressure and resistance, these tubes make it easier to use all types of diaphragms while delivering precise note articulation for devastating bugles, thunderous chuckles, and realistic elk vocalizations. Whether you're throwing location bugles across canyon country or delivering aggressive challenge calls to rutting bulls, these professional bugle tubes provide the volume, clarity, and authentic elk sounds that serious hunters demand for success in the elk woods.