BMW also sells a bike to bike module for the BMW Fit For All communicators, so that might work for other non-BMW headset users. But not 100% on that, as I haven’t even seen what they look like.Congrats on the new bike. Those comms units are BMW branded Sena SMH10r models and cost $199 each. You will not be able to talk with other Sena users unless they have a BMW branded one. You and your passenger will be able to speak with each other assuming they are using the other SMH10r. Good news is the Wonderwheel will control the volume on the Rider's headset with the BMW branded Sena.