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. 2 x 3D Glasses2 x USB Charging Cable2 x Clean Cloth2 x Manual Item Type: 3D GlassesMaterial: PC and LCD LensColor: BlackBattery Model: Lithium Battery (Built in) Capacity: 80 mALight Transmittance: 38 percent ±2Correctness: 1000:1±200Synchronization Frequency: 96 or 100 or 120 or 144HzRated Working Current: andlt 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 or infrared or Bluetooth 3D projectors, Ordinary TV) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.