[RF 3D Glasses] The active shutter 3D glasses use RF to transmit signals, works without emitter. Compared with traditional IR signal transmission, the RF signal connection is faster, and the continuity is more stable. Pack of 2, super saving!.[Compatible Devices] The RF 3D active shutter glasses suitable for most of RF 3D signal TVs and 3D projectors. Compatible 3D RF projector: EPSON, Sony, JVC, xiaomi2, Lenovo and other more; Compatible 3D HD TVs: Epson, Samsung, Sony, Panasonic, Sharp, Toshiba, Konka, TCL, Haier and more. Can replace these models of 3D glasses: TDG-BT500A, TDG-BT400A, SSG-5100GB, TY-ER3D4MU, AN3DG40 and more. [PLEASE NOTE: Device before 2012 is not compatible with this remote control.].[Easy to Use] Rechargeable design 3d RF glasses, with ON/OFF switch. Auto 5 seconds Stand by and 5 minutes Shut Off. Not throwaway 3D glasses. High definition, no ghosting images, no flickering, clearer and more stable than IR signal connection. Providing you a superior 3D visual experience!.[Quickly Pairing] When pairing, please make sure that the distance between the 3D glasses and the 3D device is less than 19.5 inches/50 cm. Press the switch button, the green LED indicator will stay on for 3 seconds, the glasses are in the power-on state, then start pairing. Package include: 3D RF glasses x 2; USB cable x2; glasses cloth x2; glasses bag x 2; manual x2.[RELIABLE AFTER-SALES SERVICE] Our company provide 12 months warranty. If the product has any problems, please feel free to contact us at anytime. We will do our best to help you. Free replacement or 100% money back.