NVidia 3d Vision Active Shutter 3D Glasses are the most stylish of the shutter glasses, but they use infra-red so they don’t work well in a home theater environment because when you start using the remote they go al wonky, and they don’t have great range. A great feature is the usb attachment they have so you can recharge them instead of having to continually buy new batteries. If they go out during a movie you can plug then in and continue to watch but that’s a little inconvenient. The cord itself though is long and light. The glasses are heavy and if you’re a person with a small face or nose wouldn’t really recommend them, although they do come with different nose inserts. that’s a cool addition. The NVIDIA software automatically converts standard PC games to stereoscopic 3D. They are high tech active shutter glasses, designed with top-of-the-line optics that deliver Full HD resolution per eye and ultra-wide viewing angles. Shows crystal-clear, flicker-free stereoscopic 3D gaming, photos, videos, and websites. Overall a great investment I would recommend them they are available here.