This is the combo pack that is just what you need for your calling needs and includes both the mini and loud mouth calls. The loud mouth is obviously bigger and you can channel a ton of air through it. You can use it as a high energy call and it works really well as a locater when it is hard to get an elk to bugle or if you need to be heard far and wide and need to stimulate a response in cold calling situations. The mini mouth is Wayne's old fighting cow call body design with a heavier weight reed. A heavier reed hangs up less and hits higher pitches. With the added denser plastic, this is one call the will produce exceptional tones. | Native by Carlton Mini/Loud Mouth Cow Elk Call