Featuresr 1 auto identification of different 3d tvs39 signals ir and bluetooth with the strongest compatibilityr 2 innovative craft of appearance anti interferencer 3 the newest active shutter technology high definition no flickering ghostr 4 super large viewing and receiving angler 5 very lightweight provides comfortable wearingr 6 excellent lcd lenses offer bright and sharp 3d experiencer 7 the lowest energy consumption designr 8 low energy alarm functionr 9 auto pow