SFF Speaker system?

I have a JBL flip 7 and I think this is the perfect speaker size but it’s a monospeaker.

I can’t stand headphones so I’m looking for a stereo speaker, it would Ofcouse had been nice with a small subwoofer and 2.1 system but I’m looking for something under 5L for a stereo system. Any recommendations or what are you self using for travel?

I travel a lot so less than 5L is objectively the restriction. Looking for something the double size of a jbl flip 7 with stereo. Putting two flips together only works on the phone…