I can only recommend these glasses. Very good 3D display and great brightness. Have the glasses bought at Blitzversand and with the latest firmware, where the problem with the automatic shutdown has been corrected. Unfortunately, the glasses are very expensive in the moment so that you can sometimes just leaves 100 Euros per spectacle. The reason is because these are the last copies on the market, as LG has ceased production completely, because they have been reduced to passive glasses Specialize. (Ag F360 etc.) Trotzalledem a great product with great features. So you quickly secures another before are all gone;)