Hi!
I'm looking for a way to build an affordable 4-way (or more) wireless (Bluetooth? Wi-Fi? other?) intercom to use when cycling with friends and family. There are apps for phones, but they only connect two users at a time and drain your phone battery and not all of our riders have phones (yet). Current commercial options cost from $80 to $200 per user! Some of our users are very young, and a full-duplex vox or hot-mic system is important.
Thanks for your time, I hope to see this on a show soon!
Tony
