I can see two surround speakers from Bose.
Virtually Invisible 300 Wireless Surround Speaker and BOSE SURROUND SPEAKERS
Bose website mentions both can be connected to Soundtouch 300 Soundbar. Can you please tell the difference between the two?
Thanks for posting and welcome to the Bose Community.
There isn't any difference with the speakers other than the name of them, the speakers were named the Virtually Invisible 300 Surround Speakers when they were released with the SoundTouch 300 Soundbar when this originally released. However the name was changed to the Surround Speakers when the Soundbar 500/700 released as the speakers are also compatible with these products.
I hope this clears this up for you and any other users with the same question. If you have any other questions please don't hesitate to ask.
Hector B - Community Support
Thank you Mr. Hector for your quick & convincing reply. My doubts got cleared with your explanation. Appreciate Bose team.