sg16 dlp 3d active shutter glasses for dlp link projector black

1. Support 3D DLP-link projectors of Optoma Acer BenQ NEC ViewSonic Sharp Dell Vivitek and Casio etc.; 2. Long viewing distance up to 30m-50m 3. Auto sync just a single power button 4. Rechargeable by micro USB 5. High-speed response lenses prevent from eye strain 6. Silicone nose pads comfort and durable to wear; Synchronous DLP-Link signal; Display Compatibility DLP-Link - Frequency: 96Hz~144Hz; Response Time: 2.5ms; Contrast: 1000:1; Transmission: 38%; Continuously Working time: About 50 hours; Frame is varnished w/ UV elegant and fine; Active 3D technology; Great for watching 3D videos