3 Sets of 3D Glasses Active Shutter Eyewear Works with all DLP Link projectors Compatible with Optoma/BenQ/Sharp/Acer/LG/Samsung/Mitsubishi and other series of DLP projectors. Cannot be compatible with Sony Epson and other LCD projectors, not used for TVs Uses the latest active shutter technology, high resolution, and no flicker or crosstalk, super-fast 144Hz refresh rate Built-in rechargeable battery, 45 hours of continuous operation after a full charge via USB, 180 days standby time. Automatic shutdown function (within 1 minute of the projector turning off), saving energy and stable; Atmospheric Pressure: 86 kPa-106 kPa 1. DLP Link technology working mode, 2. Micro-USB rechargeable 3.7V lithium battery, 180 days standby time, 3. 45 hours of continuous operation, 4. Super-fast 144Hz refresh rate. 5. Low power consumption design, can be charged via USB. 6. Compatible with Optoma/BenQ/Sharp/Acer/Samsung/Mitsubishi series DLP projector 7. Excellent lenses provide a bright and sharp 3D experience; 8. Uses the latest active shutter technology, high resolution, and no flicker or crosstalk, 9. Automatic shutdown function, saving energy and stable. Contrast: 1000:1+/-200 Frequency: 96/100/120/144Hz Working Current: Less than 1.2mA Working Time: 45+/-5 hours Battery Life: 0C-45C Storage Temperature: -10C-60C Power: 3.7V 80mAH Transmission: 38%+/-2 Response Time: 2ms+/-0.5ms Viewing Angle: 150(L/R 75) SYNC Operation: White light DLP.Link Working Humidity: 20%-80%RH Color: Blue Material: Plastic Size: 163x42x170mm Package Contents: 3 x Shutter Eyewear 3 x USB Charging Cable Warm Tip: If you are unsure whether our glasses will work with your projector, there are two ways to confirm it 1: The 3D signal receiving window can receive the DLP-Link signal. As soon as you use a 96-144Hz DLP-Link 3D projector and connect via a 3D image source, our glasses can work perfectly with your projector. 2: Or if your projector has the "DLP 3D Ready" logo below, our glasses can also work Only the above package contents, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.