I have used thr Collett Communicators since 2000 ( old 900's ) bought a pair of Collett Racefone 2 for this season. So far they perform as well as the old set. I bought the flexible wired mic version not the boom mic and have them mounted on modular helmets, easy to install and with the adjustable vox you can tune each unit to the background noise individually, I have used other communicators on my motorcycle with bluetooth and found that as soon as someone lifted his faceshield the speakers were filled with road noise and the communication channel was open and unuseable until buddy put his shield down ( one way one person communication only with BT ) thr range was short ( 1/4 mile in site with some cars between us ) range with the colletts was at least 1/2 mile, all and all I am for Collett