FLOUREON Bluetooth 3D Active Shutter Glasses for Samsung PN59D8000FF PN59D7000FF PN51D6500DF PND59D550 PN51D7000FF UN40D6300SF PN51D8000FF PN51D7000FF PND64D550 PN49D490 KDL-40NX720 3D TV Support newest bluetooth 3D TVs of Samsung/Panasonic/LG, and Epson RF Projectors Bluetooth communication method, work without emitter, Auto power off function, energy efficiency Button Battery supports 100 hours continuously working time High transmission lenses with brighter 3D video image, high-tech light-speed LCD shutter technology High quality stereoscopic 3D solution, detachable Arms, light design, 27g only