If you get good with a diaphram it will be the only call you will ever need to carry. It will make a reasonable approximation of about any elk sound that is reproducible by a human. Also light and easy to carry. You can manipulatesound unlike some of the others like the Hootchie Mama which basically produces the same tone each squeeze. The shipping to Korea has got to be less on a 1/10 ounce diaphram than some of the larger tubes, too.

My .02$.