A:Answer Yes Steeevvvve (thinking of the monkey from Cloudy with a Chance of Meatballs) , there are in-built speakers. Though these would only be loud enough for max 4-5 people in a quiet environment.
If you really want a theater experience, i would suggest never relying on any projector's speakers only, but to eventually buy some speakers and connect it to this thru an HDMI extractor.