Connecting two Bose S1 Pro's via bluetooth on laptop

Hi all,

I'm trying to figure out how to connect both of my S1 Pro's via Bluetooth to my laptop. I can get it to play with one or the other but there is no option to play through both. I figure that I need to somehow download the Bose Connect App to make that happen but I am not finding a download for Windows 10, just for mobile devices.

Am I missing something in my searches?

Thank you!