Fashion and beautiful appearance, make you enjoy the ultimate 3D feast, show your amazing taste at the same time. Its soft nose pieces and light weight will give you comfortable 3D experience. You can get into a more realistic situation with its advanced active shutter technology.Features:Support all DLP-LINK projectors, providing you a lot of choices.An optical communication method, work without the emitter.Work about 40 hours with a full charge, low power alarm.Five seconds after the loss of signal will enter standby mode, power saving.LED indicator light flicker to prompt operation, operate easily. Left and right eye switch are possible.Note: 1.GL1800 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: GL18003D Glasses Type: Active shutter glassesSynchronous: DLP-LINKDisplay Compatibility: DLP-LINK 3D projectorFrequency: 96 / 100 / 120 / 144HzResponse Time: 2.0 ± 0.5msContrast: 1000 : 1 ± 200Transmission: 38% ± 2%Battery Type: 3.7V / 45mAh rechargeable lithium-ionBattery Life: about 40 hoursCharge Time: 2-3 hoursDimension: 60 * 60 * 47 mmNet Weight: 35g / 1.23ozEnvironment Temperature: 0 °C - 45 °CRelative Humidity: 20% - 80% RHAtmospheric Pressure: 86 kPa - 106 kPaColor: BlackPackage Size: 17.6 * 8.1 * 5.5cm/ 6.93 * 3.19 * 2.17inPackage Weight: 143.3g / 5.05ozPackage List:1 * GL1800 3D glasses1 * Nose piece1 * USB charging cable1 * Cleaning Cloth1 * Glasses Bag1 * User Manual (Chinese & English)