SUPERIOR PERFORMANCE: Experience stunning 3D visuals with these glasses featuring the latest active shutter technology, an ultra-fast 144Hz refresh rate, high definition, no ghosting, and zero flicker. EASY ONE-BUTTON SWITCHING: These 3D active shutter glasses support one-button switching for left and right eyes, offering exceptional convenience without requiring a DLP projector. LONG BATTERY LIFE: Enjoy extended viewing sessions with these USB-rechargeable 3D active shutter glasses. The built-in lithium rechargeable battery provides approximately 30-40 hours of use on a 2-3 hour charge. WIDELY COMPATIBLE: These glasses deliver excellent 3D effects and are compatible with 96-144Hz projectors, supporting all major brands of 3D projectors using DLP LINK technology (regardless of brand). LIGHTWEIGHT & PORTABLE: These active shutter glasses are lightweight and portable, and can even be worn over regular glasses, ensuring comfortable wear for extended periods.