Yes, the 2150 has bluetooth. The BB website makes no mention of it, nor does the Epson website which was frustrating, and surprising. If you download the manual, you'll see that it does have bluetooth. I just bought this myself and it DOES have a bluetooth menu. However..... I successfully paired a bluetooth Bose micro Soundlink speaker to it, although I was not able to adjust the volume to the speakers max.
I haven't had a chance to reach out to Epson or Bose for help on that, but the 2150 DOES HAVE bluetooth.