I got the ICOTech 350 call/decoy combo. The 320 and 300 have fixed calls and AFAIK know you can't customize them. You can with the 350. It comes with a sim card with 24 sounds pre-loaded. ICOtech's website has many more that you can download and put on a card. Or you can make your own sounds and save them as MP3s and load those to the card.
https://www.amazon.com/Icotec-GC350-24-Programmable-Remote-Electronic/dp/B00GO7IRCG?ref_=ast_sto_dpSo far I like it. The remote works from 300 yards per their literature, and I've tested it at over 100 yards and it works well. And you can crank up the volume very loud. The decoy attachment is pretty heavy and is attached to the call in place of the call's battery cover.
I haven't hunted with it yet, but it functions well.