Just a word of caution to those of you looking to buy a new electronic caller, DON'T buy this one. At low volume you can hear CD motor noise through the speaker and at high volume the distortion sounds like you're running it through a Marshal pre amp on 11 (a little spinal tap humor). They claim the remote will go 400 yards but I can't count the number of times the thing failed at 40 because I wasn't in perfect position with it. All in all I'm pretty disapointed with it. It's made by Nite Lite and was a public address system for tour bus announcers. They should have left it that way.