Sounds unanimous

So from what I gather the 5 is smaller and doesn't require the bracket but can't plug in ear buds and can't connect to multiple devices (which is fine because my phone connects through my zumo). However can the 5 connect to multiple other riders? I figure of most of you have the Sena when/if we get up and ride we can chat.
I found this:
Hopefully someone who has some experience can highlight the limitations the 5 has with phone and intercom conference (not sure what that means).
Also how is the audio quality for music? I just read a review that compares it to $5 headphones that come with a music player. Also this:
"Audio Quality: The audio quality of the Sena SMH5 is good, but not on par with the SMH10 speakers or those used by other manufacturers for their headsets. The differences become clear when playing my standard test set of songs from the same playback device used for other intercom reviews.
The supplied SMH5 headset speakers don’t lack clarity and for intercom use and general music streaming they are well-scaled. But for many, the optional SMH5-A0305 Large Speakers will be the preferred solution.
Volume Levels: As noted above, overall volume output is less than the Sena SMH10B system and less than most other Bluetooth systems; a conscious trade-off acknowledged by Sena although I don’t see it as a critical limitation for intended applications."