I have an early series Sena, I believe series 10.
Do these new series allow 2 helmets to listen to one source of music, like a phone?
Currently ours only allows one user per device (phone), but with each using their own phone for music there is too much Bluetooth interference to listen.
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Mine SMH10's do. While in intercom mode I can push and hold the jog dial (big button on side) for one second, hear a double beep and my wife hears the same music I do. Either one of us can stop it by holding the dial for one second and it goes back to intercom mode. Called music sharing and it's in the manual.
You can start sharing music with an intercom friend using Bluetooth
stereo music during a two-way intercom conversation. When you
terminate music sharing, you can go back to the intercom conversation.
To start or terminate sharing music, press and hold the Jog Dial for
1 second during an intercom conversation until you hear a double
beep and you and your intercom friend will listen to or terminate
sharing music. To track forward or track back, rotate while pressing
down the Jog Dial clockwise or counter clockwise.
Note:
1. Both you and your intercom friend can remotely control music playback
during music sharing such as track forward and track back.
2. When you have an incoming call, make a phone call, or hear the turnby-turn voice instruction of GPS during music sharing, the function will
be paused.
3. In order to share music, make sure that you update both headsets with
the firmware that has the music sharing feature, and enable the EDR
setting in the Sena Device Manager.