The Magnum Bull Elk Bugle is a specially modified Magnum Crit' R call with a hand-tuned reed for maximum range in elk grunting and bugling. This call has range and volume not found in diaphragm and tube calls. Elk bugles need to be forceful, loud, and able to carry over long distances. They need to have tremolo (a vibrating effect to express emotion) to turn the big bulls on. The Magnum Bull Elk Bugle does this like no other call on the market. The call is packaged with an instruction booklet, 2 extra reeds, 1 extra reed block, and 1 reed band. It can be used with or without a bugle tube.