ViewSonic M2 portable projector review: What’s new? The portable projector doesn’t look any different from the Mac Mini. Think of the M2 as a wider and taller version of a Mac Mini. That means we are looking at the projector with curve-edge construction in a sleek, square package. The M2 looks elegant with its copper bronze exterior. At the front, you will find the projector lens, which oddly does not come with a lens cover. Though ViewSonic does provide a high-quality protective case to keep the projector safe. Interestingly, the M2 comes with a feature called ‘Eye Protect’, thanks to embedded sensors in the projector. So by chance if someone comes too close to the projector lens, the image shuts off temporarily.