We replaced our ageing Sena units about 3 year ago for a trip where my niece and her partner who were going with us already had Cardo units , Previously when i had the Sena SMH10 I've done a fair bit of touring and day rides with a mate and my brother in law who also had Sena units and never had any issues .I am hugely biased , because I am a big Cardo fanboy . Struggled hugely and abandoned attempts to pair with Cardo with Sena SC2
If bike to bike is your wish , start by asking your riding mates what they use . These brands do not mix at all well .
This !!We just ring each other if we have something to say.
I've got the new sena 60,s arriving tomorrow,
Will be interesting to see how it performs
Bit dangerous that, your mate coming up alongside and having to tap you on the shoulder.I would rather not have to listen to other people wittering while I am riding. No coms for us. We have our own way of communicating. Tap on the right shoulder, turn right. Tap on the left shoulder, turn left. Thump in the back, slow down.

We all had Pactalk Bold unitsNeilW; which Cardo units were you using ?
With the Cardo Packtalk, if you use DMC/Mesh, the intercom is always live but you can just say “ Hey Cardo , mute/unmute microphone “.That was why I changed from Sena to Cardo, I found the Cardo was much better at cutting out wind noise from other riders irrespective of their type of helmet or vox setting!
I only ever paired Bluetooth helmet comms once with my mate Rob, between M3 Winchester services and Ashford Le Tunnel, and I instantly regretted it.
His Vox setting triggered his microphone at low speeds from wind noise and the whole journey was just the noise of him coughing and snorting in his crash helmet…..Two fucking hours of it !
I think his wasn’t Sena comms like mine, either way I have no desire to repeat the experience again.Best to disable the Vox Intercom in the settings and just use the jog dial to start and stop a conversation - it's just a quick tap.![]()