Active 3D shutter glasses Long-Lasting Battery: Enjoy up to 50 hours of continuous play—enough for approximately 15 movies on a single charge. Ergonomic & Ultra-Light: Weighing only 28 grams, the soft PC material ensures comfort even during extended viewing. The oversized frame also accommodates those who wear myopic glasses. Wide Viewing Angle: A generous 178° viewing angle delivers distortion-free, immersive 3D visuals. Bright & Responsive: With a response time under 1.5 ms and 38% high transmittance, experience vibrant, true-to-life 3D effects.