OK, I get that Bluetooth is the standard headset used by most. But my friends and I are looking into GMRS 2-way radios with headset attachments. They use a push to talk feature that attaches to handle bars and are cheaper to buy multiple units and we can easily connect a lot of riders for a fraction of the cost of multiple Bluetooth sets. And since they go to hand sets we can talk to cars that may travel with us (for those less keen on riding) and even talk to other cars. That and we can't find a Bluetooth that will let us connect more than a couple or a few riders at a time. Anyone have any experience with these things for motorcycles?