A:AnswerHi Walker, thanks for your inquiry! They differ in weight and input and output terminals. The XB10 has only stereo mini jack while the XB12 has stereo mini jack and micro USB. Please check the comparison chart below.
https://www.sony.com/electronics/wireless-speakers-docks/t/wireless-speakers?view=compare
Regards,
Erin
A:AnswerHi Healthychakras, If you're referring to the Speaker Add function, it will only work with the same model. You may refer to these links for more information:
https://helpguide.sony.net/speaker/srs-xb12/v1/en/contents/TP0002133471.html
https://helpguide.sony.net/speaker/srs-xb10/v1/en/contents/TP0001271286.html
Regards,
~Ralph
A:AnswerYou can definitely pair with a laptop if it has BT capability. You may have to switch over to it after it’s paired. That’s what we did for a Zoom call. We have only tested pairing two speakers which worked fine. I don’t know about adding more than two.
A:AnswerHi LanaG, If you've lost the charger, you can use a USB AC Adapter. The speaker supports a USB AC adaptor (commercially available) with an output current of 500 mA or more. Hope this helps! -Sam