For me, I'd spend my money else where, unless I was going to call crows more often.The electronic callers do seem to work better for crows, but I'll stick with the hand calls for coyotes.Hand calls weigh less, are easier to turn on and off, this lets a guy control, or call to the coyote, when it may need a bit more coaxing, and hand calls can't run out of battery power, or eat cassettes.But for calling crows, they are hard to beat!Just my opinion, but I do lots of walking,