<p>Features:</p><p>1. Lightweight and comfortable: These 3d glasses are light and portable, and they can also be worn very comfortably in front of ordinary glasses for a long time.</p><p>2. Coating technology: These 3D glasses use nano-level composite coating technology, adding 7 layers of coating to effectively remove scattered light, high fidelity, and natural color.</p><p>3. Left/right eye switching: If you have turned on our 3D active glasses and can't see the 3D effect, just click the "power button" again to flip the left eye and right eye view to synchronize.</p><p>4. Shutter: The glasses use the latest active shutter technology, ultra-fast 144Hz refresh rate, high-definition, no ghosting, no flicker, providing you with an excellent 3D viewing experience.</p><p>5. 3D liquid crystal optical lens: These 3D glasses are made of liquid crystal lens made of "black" technology, which has a significant increase in light transmittance, reduces the brightness loss by more than 40%, and the 3D effect is more significant.</p><br><p>Description:</p><p>These 3D glasses use a sensitive sensor head, crystal head switch key, Micro charging port and high-definition lens axis show the meticulous workmanship, reflecting the quality everywhere.</p><br><p>Specifications:</p><p>Battery: 90MAH</p><p>Type: LCD shutter</p><p>Frame material: PC+LCD lens</p><p>Field frequency: 96-144HZ</p><p>Contrast ratio: 1000:1</p><p>Charging time: 5 hours</p><p>Standby time: 180 days</p><p>Receiving distance: 8m</p><p>Applicable object: for DLP-LINK projector</p><br><p>Package Included:</p><p>1 pair * 3D Glasses</p><br>Notes:<br>1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.<br>2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.