The revolutionary Thunder Bugle is one of the best external elk calls ever made. The thin replaceable RT-Reeds snap into the mouthpiece in seconds. With four different types of RT-Reeds you can produce a variety of sounds quickly. Simply blow a breath of air through the call and apply top lip, bottom lip, or even tongue pressure and you will be producing tones so easily. With a little practice you will be sounding like the real thing in no time. The Thunder Bugle comes with two RT-Reeds, a camo cover, and a cap to protect the reed.