Can someone explain how the "sound download" actually works on those new digital callers???? I have an OLD cassette tape type caller with the loudspeaker on a 50'cord and a very heavy battery. Works well but its just plain wearing out. I want to get a new caller but I'd like it to call continuously until I turn it off. Can you do that with a downloaded sound? I'm thinking I would have to repeat the same sound bite over and over, always messing with the buttons on the remote and having silence between every "repeat". Thats no good for crows. Thanks for any insight, BB Also, if you hunt crows, what e-caller do you use?