First, I am an adept of sonos products.
Now. For the roam, sorry..
Change all the time from bluetooth to wifi
Without charge, just wait for 20 minutes before she accept to answer to you, when she accepts to charge with her sonos base (not all the time).
Lost from group permanent. To be reinitialized all the time.
Connexion in bluetooth ? Call Einstein!!!
Don't buy!! Go for the rest of the products.