[OUTSTANDING FEATURES] The dlp link 3d glasses adopts the latest active shutter technology, super fast 144Hz refresh rate, ahead of other 120Hz or 96Hz product's level. And it also a rechargeable design 3d glasses, with OFF switch. Not throwaway 3d glasses. High definition, no ghosting images, no flickering, providing you a superior 3D visual experience[2D TO 3D FUNCTION] Our 3d glasses has 2D to 3D function. If you have turn ond pair our Active 3D Glasses and don't see the effect of 3D, just need to clicking the volume up and down switch on the remote control panel and then press the switch in the middle of the glasses to flip the left and right eye views, in order to obtai better 3D experience.[EASY OPERATION] Simple One Button Operation with Auto 5 seconds Stand by and 5 minutes Shut Off, detailed user manual included. It is very convenient, no need to operate the dlp projector. The active shutter 3d dlp glasses comes with built-in high capacity rechargeable battery, working up to 45 hours continuously after fully charged with USB, standby time 180 days;[WIDE AND QUICK COMPATIBILITY] The Active Shutter 3D Glasses use "DLP Link" as their sync method can quickly works with all DLP Link technology projectors, Compatible with Optoma/BenQ/Acer/Vivitek/Panasonic/Dell/Viewsonic/LG/Samsung// dlp-link projectors. (Note: It can't compatible with TVs)[RELIABLE AFTER-SALES SERVICE] Our company provide 12 months warranty. If the product has any problems, please feel free to contact us at anytime. We will do our best to help you. Free replacement or 100% money back. If you are interested in 3d projector, you can click here: K1: http://www..com/dp/B086PPRYVG; V7: http://www..com/dp/B07WFMTZZT; V5: http://www..com/dp/B07PLWNQKS; T5: http://www..com/dp/B07Q15LLKY; T6: http://www..com/dp/B07VMS3WS6