The Slide Bugle allows for easy control with minimal air to produce high-pitched bugles. Slide tray holds and protects diaphragm and when not in use retract slide to protect the diaphragm. Simply apply more pressure with lip to increase pitch. For cow and calf sounds, remove the mouthpiece from the bugle hose. Expandable hose allows bugle to be extended from 13'-20". Resonating chamber for growls and chuckles. Includes: mouthpiece with protective slide plate, two Elk diaphragms, bugle hose and lanyard.