3d active tv glassfor samsung 3d videoglassesFunction:wear it to watch 3d tv , you can watch 3d movies3D Glasses has Automatic Power ON/OFF system, with very low power IR signal detection scheme.Very low power consumption, the batter cell can operate up to 300 hours. Stand-By time 5 years.Auto Low Power Detection: Glasses will flash to remind users to change battery.3D Glasses has basic water proof feature to protect it against normal domestic environment.All materials are RoHS compliant LC Panel is made of glass. Avoid twisting of the frame and dropping the glasses on the floor.LC Panel surface has a layer of polarizer. Avoid scratching with hard and sharp object.Although the 3D Glasses is water proof, but it cannot be washed in water. Use cotton cloth for cleaningAvoid bending the stems too much, say more than 90-degBattery compartment need a special tool to remove the battery for changing. (This feature for cinema use. For domestic user, we can change this design)3D Glasses will power down automatically when no IR synchronization signal is present in the cinema. So to save battery power for the glasses, do not expose it to IR signal when not in use. (Again, this feature is design for cinema and can be changed for domestic environment.)