Description Fashion and beautiful appearance, will make you like a real three-dimensional feast, showing its amazing taste at the same time. Soft nose pieces and light weight will provide a comfortable 3D experience. You can get a more realistic situation with advanced active snapshot technology. Characteristics: Support all DLP-LINK projectors, providing you with many choices. The optical communication method works without a transmitter. Work about 40 hours on a full charge, low power alarm. Five seconds after signal loss, it will go into standby mode, saving energy. The LED indicator flickers to encourage work, works easily. Possible left and right eye switching. 3DGL1800 3D glasses should work with DLP-LINK 3D projectors to enjoy realistic, vivid 3D images. Confirm support for the 3D DLP-LINK 3D projector. 2. Read the instruction manual carefully before using 3D glasses. Technical data: Model Number: GL1800 3D Glasses Type: Active Shutter Glasses Synchronous: DLP-LINK Display Compatibility: DLP-LINK 3D Projector! Frequency: 96/100/120 / 144Hz Response time: 2,0 0,5ms Contrast: 1000:1 200 Transmission: 38% 2% Battery Type: 3.7V / 45mAh Lithium-ion Battery Battery life: about 40 hours Charging time: 2-3 hours Dimension: 60 * 60 * 47 mm Net Weight: 35g / 1.23oz Ambient temperature: 0C - 45C Relative humidity: 20% - 80% relative humidity Atmospheric pressure: 86 kPa - 106 kPa Black color Package Weight: 143.3g / 5.05oz Package List: 1 * GL1800 3D Glasses 1 * Nose piece! 1 * USB Charging Cable 1 * Cleaning Cloth 1 * Glasses Bag 1 * User Manual (Chinese and English)! 1 * Manual do usuário (chinês e inglês) 1 * Manuale dell (cinese e inglese)