Splendid image lighter than previous generations glasses, even if after a while the weight is felt, matter of habit. Progress will come with time. The Samsung SSG4100GB 20 are compatible with the Panasonic plasma range in 2012 but more rudimentary (no 2D transition to rest the eyes of some viewers while the others continue to 3D, thin branches that allow the lights, which are less stable on the ears and do not fold), but lighter. Thank you to Amazon, they replaced me immediately a faulty pair. And the price was perfect.