Rechargeable – & quick charging – with easy operation Auto Power On/ Off & comfort fit design, these Full HD 3D Glasses show you 3D as it’s meant to be. These glasses also fit over prescription glasses A sleek, slim-line frame & lightweight design make the Samsung SSG3570 one of the most comfortable pairs of 3D glasses. Even with its lightweight frame, the SSG3570 features a rechargeable battery capable of providing up to 40 hours of use on a single half hour charge, while an auto on/off function will ensure you won't be having to charge your glasses halfway through your film. Working on the active shutter principle, these glasses are designed to operate with Samsung 3D TVs from 2011, 2012 & 2013 Ranges