Feature: 1. Support all DLP-LINK projectors. 2. Optical communication method, work without emitter. 3. Two minutes without signal automatic power off, power saving. Working about 50 hours with full charge. 4. High transmittance LCD provide perfect 3D experience. Active shutter technology, full HD and no flicker. 5. Low power alarm function. Left and right eye switching is possible. Specification: The 3D glasses will give you comfortable feeling with soft nose pieces and lightweight. It can be compatible with a wide range of DLP-LINK projectors, providing you a lot of choices. You can enjoy the wonderful 3D feast easily for its simple operation. Features: Support all DLP-LINK projectors. The optical communication method, work without the emitter. Two minutes without signal automatic power off, power saving. Working about 50 hours with full charge. High transmittance LCD provide perfect 3D experience. Active shutter technology, full HD, and no flicker. Low power alarm function. Left and right eye switching is possible. Note: 1.GL410 3D glasses should work with DLP-LINK 3D projectors, then you can enjoy realistic, vivid 3D images. Please confirm your 3D projector support DLP-LINK 3D function. 2. Please read the User Manual carefully before using the 3D glasses. Specifications: Model Number: GL410 3D Glasses Type: Active shutter glasses Synchronous: DLP-LINK Display Compatibility: DLP-LINK 3D projector Frequency: 120Hz Response Time: 2.0 ± 0.5ms Contrast: 1000 : 1 ± 200 Transmission: 38% ± 2% Battery Type: 3.7V/90mAh rechargeable lithium-ion Battery Life: about 50 hours Charge Time: 2-3 hours Dimension: 68 * 58 * 43mm Net Weight: 46.1g / 1.62oz Environment Temperature: 0 °C - 50 °C Relative Humidity: 20% - 80% RH Atmospheric Pressure: 86 kPa - 106 kPa Color: Black Package Size: 20.7 * 6.9 * 6.1cm/ 8.15 * 2.72 * 2.40in Package Weight: 140.3g / 4.94oz Package List: 1 * GL410 3D glasses 2 * Nose pieces 1 * USB charging cable 1 * Cleaning Cloth 1 * Glasses Bag 1 * User Manual (Chinese & English) Package List: 1 * GL410 3D glasses 2 * Nose pieces 1 * USB charging cable 1 * Cleaning Cloth 1 * Glasses Bag 1 * User Manual (Chinese & English)