PHELPS CALLS

A great way to organize and dry your calls out between using them. The PDO will hold 8 diaphragms total, 4 on each side.. 550 paracord lanyard.

-Large corrugations in the chamber provide great resonance.-Corrugations provide structure to the tube
-1.25″ flared mouth opening for comfort and usability.
-Over-Cupped Exhaust Bell for backpressure and resistance making it easier to use ALL diaphragm