October 20 2017 UPDATE. I now have 2 SoundTouch 30’s, 8 SoundTouch 20’s, 1 SoundTouch 10 pair and a SoundTouch 130 Home Theater System. I purchased the first of them on July 28 2016. The 30 and the 20 are good quality MONO speakers (it’s absurd you still can’t turn the 20’s and 30’s into stereo pairs).
https://www.amazon.com/Bose-SoundTouch-wireless-speaker-738063-1100/dp/B011IH6E26