3D glasses for DLP-Link Projector is portable and comfortable, enables you to view 3D images High transmittance ensures the best 3D experience with true colors. When using the glasses with a 3D projector that supports the 3D function, you can enjoy much more realistic, vivid 3D images. Warranty one year warranty. 30 days free return and money back guarantee. 24 customer service response.Features: * Frames with ABS+PC material, products low energy, low carbon and environmental protection * Synchronizes active shutter glasses directly with the 3D image projected without emitters * Data is sent seamlessly by the projector in between video frames to create Stereoscopic 3D which is what creates the perceived depth on a flat surface * High permeability rate to ensure perfect quality, millisecond response time are unlikely to cause eye fatigue Specification: Contrast Ratio:1000:1 Liquid Refreshing Frequency:120Hz Shutters: Liquid Crystal luminousness:38% View Angle:80° Working Current:1.2mA Working Temperature:0℃-50℃ Charge Time:3 H Compatible List: ViewSonic PJD5134 SVGA / PJD7820HD Vivitek D803W /D512-3D Acer H6510BD / H5370BD / H5360 Sharp:PG-D2710X DLP Projector PG-D3010X DLP Projector PG-D3510X DLP Projector BenQ W1070 / W1080P / W1040 / W7000 / W1080ST Optoma GT750E / HD65 / HD33 LG PA70G Dell:1610HD DLP Projector M210X DLP Projector M410HD DLP Projector Samsung 3D Ready DLP TVs Mitsubishi 3D-Ready DLP TV Panasonic DMP-BDT220 Integrated Wi-Fi 3D Blu-ray DVD Player Package List:1 x 3D glasses 1 x Carrying pouch 1 x Cleaning cloth 1 x USB charging cable 1 x User manual in English