Few years back I got info and a CD from a booth at a show where these 2 guys made these devices out of their basements, there was a 2 year wait cuz they were the only 2 who made em. You could hook up your cell phone, Ipod, was voice activated and range was about 1 mile from the person that was behind you and it was reliable, I want to say it was called The Snow Phone but not sure. Well anyway this is what I'm interested in getting info about about. Any suggestions? Thanks