A:Answer Hi SoyYo, other than the light, the XB3 does not have the PartyChain feature, however, you may use its Speaker Add function for your to be able to pair 2 XB3 speakers. The XB30 has the PartyChain feature where you can pair up to 10 compatible speakers (SRS-XB20, SRS-XB30, SRS-XB40). You may check this link for a basic comparison between the 2 speakers: https://www.sony.com/electronics/wireless-speakers-docks/t/wireless-speakers?view=compare Thanks, -Mark