RE: Deer calls
A great call that works, that has it's own pitch w/out using your mouth is the "can call." They come in various sizes with various tones of pitch, each equal to the size of the call. I use the "Lil Can." It's not a really loud call which is good for the deer that might be somewhat close, 100 or less yards.
It's a great call, all you do is hold it in your hand and tip it over and it makes a doe bleat.