Lots of appealing features have been integrated into this product such as cool appearance, lightweight design, high-definition image, left/right eye intelligent switching, smart chip, intelligent automatic shutdown, etc. With humanized design and fine workmanship, it is a pair of 3D glasses that have a long service life in your daily use and is comfortable to wear. Made of ABS and PC material, it has a good performance in your daily use. It can also be used by nearsighted people. The length of the product is 17cm, the width is 15.8cm, the height is 4.6cm. Our product is compatible with all DLP LINK 3D technology projectors and DLP LINK 3D TVs on the market, for example, for Sony projectors, for Hongji projectors, for BenQ-projectors, for XGIMI projectors, for JMGO projectors, for Panasonic projectors, for Hengtianbao projector, for Vivitek projector, for Hisense TV, for Optoma TV, etc. Item Name: 3D Glasses Material: ABS,PC Model: GL1800 Colour: Black Frame Rate: 96Hz-144Hz Contrast Ratio: 1000:1+/-200 Battery: Built-in 45mAh Rechargeable Battery(Included) Standby Time: 40 Hours Charging Time: 2-3 Hours Viewing Angle: 30 Degrees (L/R15 Degrees) Light Transmittance: 38 Percent +/-2 Percent Compatible Products: All DLP LINK 3D technology Projectors and DLP LINK 3D TVs on the Market, for Example, for Sony Projectors, for Hongji Projectors, for BenQ-projectors, for XGIMI Projectors, for JMGO Projectors, for Panasonic Projectors, for Hengtianbao Projector, for Vivitek Projector, for Hisense TV, for Optoma TV, etc Features: High-definition Image, Comfortable to Wear, Practical Size Details: 17cm x 15.8cm x 4.6cm/6.69" x 6.22" x 1.81" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. This product must be used with DLP LINK projectors or DLP LINK 3D TVs. This product does not support the following scenes: polarized 3D, cinema, bluetooth-compatible 3D projectors, infrared projectors, ordinary TVs and PC monitors, notebook computers. Before purchasing. Please confirm with customer service whether your device supports this product. Thank you! Package Includes: 1 x 3D Glasses 1 x Data Cable 1 x Glasses Cloth 1 x Glasses Bag 1 x User Manual