Used with a Benq W1080ST, these glasses provide excellent 3D rendering, however, I did not put 5 stars because I find it a little flimsy branch system, so I decided to leave them permanently branches on eyeglasses to avoid "dangerous" manipulations. So do not use the storage covers, glasses are stored in a small box in a drawer properly with the projector. The system branches however convenient for those who already wear glasses. For me, they are not distracting to wear (see case by case but for me, no pain or discomfort in the nose). The switch-on and stop button with light signaling is well placed and works perfectly, in time to see ... I do not regret this purchase and recommend it!