Get a pot style call. I prefer slate. I think it sounds better and is easier to keep conditioned than glass. Also really like aluminum. It is louder and works better on windy days etc. as far as one handed. I've never been caught with the call in my hand and not been able to shoot. When I know a bird is coming in the call is already down and gun up. Also there are some really good push button calls on the market too. They are easy one hand calls

HERE TURKEY,TURKEY,TURKEY!

No kidding, I have had the durn things answer when I called the dog.