The NEW Art/Science of Call Operation 117 minute MP3 sound file mirrors the highly instructional and popular "Pro Duck Calling" video/DVD. This is PURE instruction on the proper operation of a functional single reed duck call.  World Champion, Jim James presents the copyrighted Carlson System of Call Operation.

The original tape (and now MP3 file) has taught thousands of students over the years to become better callers. Now you can enjoy this same information on your portable MP3 player or home computer. Instant download. No shipping and handling costs and no waiting for the mailman.

Download it now and start learning immediately!

117 minutes in length