Hi @Baltazard, I tried the Roger On today, and Roger Select whilst out walking the dogs, with my wife… Roger on was good for approximately 60 to 80 feet, but reduced clarity after about 60 feet, before it cut out at about 80ft…… This was only tested on a straight line of sight basis. When the Roger On is out of Range, it will not pick up connection until you are approximately 50ft away….As for Roger Select, it doesn’t like bodies, if I was behind my wife, by as little as 10 feet or less, it cut out, but when in front of Elspeth 20 to 30 ft was its approximate limitation…. Roger On, for me at least, is a better sound quality, it’s only marginally better, but I can tell the difference… Cheers Kev