I guess I shouldn't be confused by it but for some reason I am. With ALL of the possible solutions maybe it's no surprise.
Some seem to allow SOME external connections, cabled? Blue tooth? Can I connect my cell phone if it's not bluetooth? My MP3 player isn't bluetooth. Do some do bike to bike without the need for extra FRS radios? Do any of them need FRS radios? If not how do you change the channel? Where do you put the radio? Am I going to have my cell phone, my mp3 player and my FRS radio in my tank bag? What about rider/passenger? Where do you mount them? PTT? VOX? Then there's the need for headsets. Some have cables for passenger and rider. Nolan N-com is blue tooth.
I have need of rider/passenger for my son and i and something for my wife and I bike-to-bike. My cell phone is blue tooth.
Is it really this complicated?