A:AnswerHi! Thanks for reaching out! Please be advised that the new Solar Stone Multi speakers are not compatible for pairing with older Solar Stone or Solar Rock Speakers. A full list of our compatibility offerings can be found here!
https://www.ionaudio.com/multi-sync-stereo-link-compatibility
A:AnswerThanks for reaching out. We have a few different models of Solar Rock speakers. If they are the Solar Rock MultiSync speakers that you are referring to, they can be connected wirelessly to any other Ion Speaker that is advertised as "multi-sync enabled."