Feature 1 DLP LINK Projector 3D Glasses: Active shutter 3D glasses use "DLP Link" as the synchronization method, 144Hz refresh rate, compatible with all DLP Link projectors, improve the DLP Link projector sensing experience. 2 Widely Compatible: Support for Optoma, for BenQ, for Acer, for Vivitek, for Dell, for Viewsonic, for Mitsubishi DLP LINK projector. (Not compatible with ordinary projectors, Bluetooth 3D projectors, TVs, etc.) 3 Fashion Design: Beautiful colors stand out in the dark. Lightweight and portable, comfortable to wear for a long time. The 2 piece package is suitable for double use or single replacement. 4 Outstanding Features: DLP LINK 3d glasses use the latest active shutter technology, 144Hz ultra fast refresh rate, high definition, no ghosting, no flicker, providing you with an excellent 3D viewing experience! 5 Left and Right Eye Rotation: If you wear our 3D active glasses and still can't see the 3D effect, just click the "power button" again to flip the left and right eye views for synchronization; very convenient.Item Type: 3D GlassesMaterial: PC + LCD LensColor: BlackBattery Model: Lithium Battery (Built in) Capacity: 80 mALight Transmittance: 38%2Correctness: 1000:1200Synchronization Frequency: 96/100/120/144HzRated Working Current: <1.8maSynchronization Method: White DLP-LinKParameters: Support Various 3D Technology DLP-LinK Projectors, for XGIMI ZX4 H1, for JMGO G1 G3 X1, for BenQ, for Acer, for Optoma, for Hitachi, for Philips, etc. (Does not support monitors, ordinary/infrared/Bluetooth 3D projectors, Ordinary TV) Package List2 x 3D Glasses2 x USB Charging Cable2 x Clean Cloth2 x Manual