Ok, the glasses come from overseas in the reviews I've also read that lasts the whole more than 3 days but it is also clear, though it should be previously seen from where the whole ship is. For me it has then lasted just about 14 days. The glasses sit but good can press on the ear even after hours of use. The glasses could be felt a little bigger, but a comparison I did not, because it's my first DLP glasses with an integrated battery. But for occasional 3D look on my canvas are they good. As I said, have no direct comparison with other glasses if the 3D effect is better or more pronounced. With a variety of films, he was always clear to identify and define clean. (Guardians of Galaxy, Pacific Rim, Marvel Avengers, Nurse 3D. Etc)
If you can live with the waiting period and does not want to spend much money here is really good advice. The battery has incidentally now survived already 5-6 films and is still not at the end, very good!
