screw diaphrams...... cow-talk by e.l.k. inc is your friend.
Yep...amazing call ain't it!
They are hard to use ,if not impossible if you have caps on your front teeth.
In cold weather, you need to keep them inside your coat or the plastic gets too hard to squeeze.
I had to go to reed call. I like the Lil Chuckler from Elk Nut Productions as you can take the reed part out of the tube and use it as a cow call.
I also keep two other reed calls on a lanyard about my neck to make different sounds
