Bluetooth 5 in, Stereo Sound out?

reboot

With the soon to arrive Bluetooth 5, with its quadrupal range and increasing data broadband capacity by 800%,I recently attempted to use two Bluetooth portable speakers together, only to realise it couldn't be done.
Obvious, when you think about it I guess, but only one speaker at a time will "Handshake" to a smartphone,(The music sourse))
This meant that a speaker could stream music at the barbeque outside, but not to a second speaker in the house.
Whilst these little speakers are fine, with their li-on batteries, and two tiny speakers 3 inches apart, they can hardly be considered as stereo sound.
In the end I made a system,based around the Bose room mate with an active , battery powered speaker, feeding a second speaker, where ever you want to place it for a decent stereo image.
Don't see anything battery powered and portable Bluetooth speaker stereo system on the net for sale that ticks this particular requirement for our barbeque summer ahead?

icdg

Moved to Audio Amplifiers and Speakers