I'm an international seller, your order will be shipped from China, we shipped all parcels by Yun Express, it will delivered in 8-14 days. please allow the necessary time about minimum 14 working days for delivery right now depending on your shipping country, due to ongoing delays in postal deliveries globally.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: GL4103D Glasses Type: Active shutter glassesSynchronous: DLP-LINKDisplay Compatibility: DLP-LINK 3D projectorFrequency: 120HzResponse Time: 2.0 0.5msContrast: 1000 : 1 200Transmission: 38% 2%Battery Type: 3.7V/90mAh rechargeable lithium-ionBattery Life: about 50 hoursCharge Time: 2-3 hoursDimension: 68 * 58 * 43mmNet Weight: 46.1g / 1.62ozEnvironment Temperature: 0 C - 50 CRelative Humidity: 20% - 80% RHAtmospheric Pressure: 86 kPa - 106 kPaColor: BlackPackage Size: 20.7 * 6.9 * 6.1cm/ 8.15 * 2.72 * 2.40inPackage Weight: 140.3g / 4.94ozPackage List:1 * GL410 3D glasses2 * Nose pieces1 * USB charging cable1 * Cleaning Cloth1 * Glasses Bag1 * User Manual (Chinese & English)