Feature: 1. *Support all DLP-LINK projectors, providing you a lot of choices. 2. *An optical communication method, work without the emitter. 3. *Work about 50 hours with a full charge, low power alarm. 4. *Five seconds after the loss of signal will enter standby mode, power saving. 5. *LED indicator light flicker to prompt operation, operate easily. Left and right eye switch are possible. Specification: Features: *Support for DLP-LINK projectors, providing you a lot of choices. *An optical communication method, work without the emitter. *Work about 50 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. Notes: 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: GL2100 3D Glasses Type: Active shutter glasses Synchronous: DLP-LINK Display Compatibility: DLP-LINK 3D projector Frequency: 96 / 100 / 120 / 144Hz Working Current: ＜1.7mA Battery Life: 55±5hr Working Temperature: 0℃ - 45℃ Storage Tempereture: -10℃ - 60℃ Power Supply: 3.7V / 80mAH Gross Weight (include the battery): 32.3g / 1.14oz Transmission: 38% ± 2 Response Time: 2ms ± 0.5ms View Angle: 30°(L/R 15°) SYNC Operation: White light DLP-Link Working Humidity: 20% - 80% RH Atmospheric Pressure: 86 kPa - 106 kPa Color: Black Package Size: 17 * 7 * 5.5cm / 6.69 * 2.76 * 2.17in Package Weight: 121.8g / 4.3oz Package List: 1 * GL2100 3D glasses 1 * USB Charging Cable 1 * Cleaning Cloth 1 * Glasses Bag 1 * User Manual (Chinese & English) Package List: 1 * GL2100 3D glasses 1 * USB Charging Cable 1 * Cleaning Cloth 1 * Glasses Bag 1 * User Manual (Chinese & English)