I realize there are a lot of threads about communications systems here, and I've looked at some without finding what I need, so forgive me if this is answered somewhere. I'd like some way to talk to my passenger behind me. That's it. The systems I've glanced at all have complicated features for communicating with many people over a big range--which seems like overkill when I just need it to have a range of two feet to talk to one person--and are pretty pricey, in the range of hundreds of dollars per unit. Is there something else I should be looking at for this purpose? If my girl and I both have smart phones, is there an app that'll accomplish this? I assume that there's a standard-ish recommended thing for mounting a mic and speaker into a helmet? If there's a Newbie FAQ to Helmet Comms, I'd love a referral to it. Edit: It occurs to me that I'd also like it if whatever system I get does also work with my phone, so I can listen to turn-by-turn directions or use the phone or listen to music (off the bike, of course). Don't know if that's possible without moving stuff around, or if the same headphone/mic can connect Bluetoothly to the comm system and phone at once.