This projector uses active 3D glasses, as do all home projectors that have 3D. These are DLP Link glasses, as is the standard fare for DLP projectors, although more expensive DLP projectors often may now offer newer technologies for 3D. What I know about the 3D comes from the manual, as I was not sent any 3D glasses. If they would have sent me the glasses, I’d tell you more. However, I have no reason to pull your leg over it, so instead of lying about how good/(or not) its 3D function is, I’ll defer to the manual instead. The Optoma BG-ZD301 3D glasses are compatible with DLP® 3D projection systems. Each pair gets about 60-hours of use before needing a recharge. Pretty good buy at $99 but I beg to differ with the website on calling them being “stylish”. I have yet to see a pair of 3-D glasses that makes a person look any better than one of Biff Tannen’s sidekicks or a renegade from a 1980’s New Wave video.