Also on the right side, just under the dreaded focus control, is an air vent, with the other air vent to be found on the bottom of the projector, along with the screw-thread for mounting on a tripod. The speaker is located on the back of the projector, under the inputs. I haven’t been able to find any documentation as to the wattage of said speaker, but it is loud enough to view video content in an intimate space.
The Acer C200 has but a few inputs – all that you need on such a projector, really. There is an audio jack for headphones or external speakers that connect via an 1/8th inch AUX cable, an HDMI input, USB port, and the connector for DC power. There is a power button next to that, and a Kensington lock underneath.
No remote control to be found, which kind of sucked when changing color modes for testing, but the remote controls that come with pico and pocket projectors are generally, truly awful and their buttons are difficult to press. The remote will not be sorely missed.