The ZD302 DLP Link 3D glasses offer customers the best 3D viewing experience available in today"s market. Our most comfortable 3D glasses design is both lightweight and stylish at just 1.1 oz and come with interchangeable nose pieces for customized comfort. Easy on the ears and comfortable to wear for a long period of time, the ZD302 glasses are large enough to fit over most prescription glasses, allowing all to enjoy the exciting experience of 3D content. Experience 3D like never before. Comes standard with a 1-Year Limited Warranty. What"s in the Box: 3D glasses, USB charging cable, soft pouch, microfiber cleaning cloth, and nose piece. Compatibility: All Optoma 3D projectors (exception: HD91).