I have a Johnny Steward digital, and I love it, I live in Saskatchewan and it gets extremely cold and i've never had an issue of it locking up in the cold (knocking on wood). It isnt wireless as stated earlier but it comes with 60 ft of cord ( i always keep the call beside me though so i dont use it) But all in all for the price I think its a great call, between me and my buddy we are getting close to 60 coyotes this year ( not all were called in). I give the system a thumbs up, and wouldnt hesitate to buy one, if cash wasn't an issue i would get a fancy foxpro tho, but what i have works fine.