moose call
Hi,
With my hunting partners, he uses a birch bark call that his father made long ago as well as another newer homemade birch cone. I prefer to use either my hands and/or voice without the cone. It free my hands if I need to aim and snort, grunt or call at the same time.
The downside is it does not reach as far and you need to call louder to do the so call "long call",

which I usually don't like doing. I prefer more natural and slow approach instead of having to call Mr Mooooooooooose to the next mountain peak.
These birch call are fairly easy to build and if you do build one, use a already cut log and skin the bark of, otherwise, it's hard on the living tree to be skinned around for 12-15in wide.
The electronic ones,well, I bought a cass creek one for moose (NOT FOR HUNTING)

, just to play around as they cannot be used legally here in Qc for hunting. It was a deal on e-bay bought more as a curiosity.
It produces calf, (so so), sparring bull (sounds more like deer rattling), lonesome cow (actually not bad), mating moose (in water, good sound effects) and estrus cow ( +- good).
From farter away, maybe the sound of the electronic is ok but from close range, it usually and does sounds awful.
PaulT