Disclosed is a container for housing a diaphragm game call, comprising a case having a first member, a second member, and a line of connection therebetween, a fastening means for connecting the first and second members, and at least one moisture-retaining member disposed between the first and second members. The moisture-retaining member is preferably a sponge that can be soaked with an alcohol-free mouthwash, which helps to prevent the latex reed in the diaphragm game call from drying out and requiring replacement. The mouthwash also acts as a sanitizer to prevent the accumulation of germs and bacteria. A D-ring on the exterior of the case provides an attachment location for a lanyard, which allows a user to carry the device around his or her neck, or to remove the lanyard and carry the device in a pocket.