The Active Shutter 3D Glasses for DLP-Link Projector is fully compatible with all DLP-LINK 3D projectors， allowing you to enjoy ultimate 3D feast in home theater. It utilizes top-notch light-speed LCD shutter technology to enable high resolution display. With high transmission lenses， the glasses offer brighter images for better effects. Plus， it features smart synchronization of working frequency. Inbuilt high capacity rechargeable battery offers enough power for up to 50 hours of play time at one full charge. Cool， huh? Don’t hesitate to buy now!                                    Features            Fully compatible with all DLP-LINK 3D projectorsTop-notch light-speed LCD shutter technology， high resolution displayHigh transmission lenses for brighter images and better effectsSmart synchronization of working frequencyOptical communication， require no emittersAuto power off function， low energy costEminent chipset with quick response timeInbuilt high capacity rechargeable battery for up to 50 hours of play time at one full chargeLow battery alert， easy to use                                                            Specifications            Dimensions    (6.5 x 1.57 x 6.5)" / (16.5 x 4 x 16.5)cm (L x W x H)    <br>Color    Black    <br>Material    ABS    <br>Weight    1.55oz / 44g    <br>3D Glasses Type    Active Shutter Glasses    <br>Synchronous    DLP-LINK    <br>Display Compatibility    3D HDTV， Blu-ray Players    <br>Frequency    120Hz    <br>Response Time    2.0ms    <br>Contrast    750:1    <br>Transmission    ≥37%    <br>Battery Type    3.7V/70mAh Rechargeable Lithium-ion    <br>Battery Life    About 40 hours    <br>Charge Time    About 2 hours    <br>Environment Temperature    0 ℃-40℃    <br>Relative Humidity    20%-80%RH    <br>Atmospheric Pressure    86kPa-106kPa    <br>                                                            Package Includes            1 x 3D Glasses1 x USB Charging Cable (0.8m)1 x Cleaning Cloth1 x Glasses Bag1 x English User Manual                                                            Extra Info