I've been fiddling with my grandmothers Mac computer and she has asked me to help her set up a blue tooth speaker in her living room. That part was simple, but she was wondering if it was possible to play audio on both the blue tooth speakers and on her Mac simultaneously. This posed a problem for me as I have never tried to play music from two separate speakers at the same time. I've fiddled around in the preferences but can't for the life of me find out how to play audio on two separate speakers. If this is possible without downloading a third party software I would prefer it, but if it is necessary please point me to the website. Thank you in advance!