Experience immersive 3D with these DLP LINK projector glasses! These active shutter glasses use DLP Link synchronization at a 144Hz refresh rate. Universally compatible with all DLP Link projectors, enhancing your viewing experience. Works with Optoma, BenQ, Acer, Vivitek, Dell, Viewsonic, and Mitsubishi DLP LINK projectors (not compatible with standard projectors, Bluetooth 3D projectors, or TVs). Stylish design with vibrant colors that stand out. Lightweight and comfortable for extended wear. A 2-pack provides convenience for shared viewing or easy replacement. Featuring the latest active shutter technology and a 144Hz ultra-fast refresh rate, these glasses deliver high-definition visuals with no ghosting or flickering. Enjoy a superior 3D viewing experience! If you're not seeing the 3D effect, simply press the power button to reverse the left and right eye synchronization for a perfect fit. Material: PC + LCD lens Black color Battery Model: Lithium battery (Built-in) Capacity: 80 mA Light Transmittance: 38%±2 Contrast: 1000:1±200 Synchronization Frequency: 96/100/120/144Hz Rated Working Current: <1.8mA Synchronization Method: White DLP-Link Package includes: 2 x 3D glasses, 2 x USB charging cable, 2 x cleaning cloth, 2 x manual