Specification: Type: 3D Glasses Size: about 140* 40* 50mm/ 5. 5* 1. 5* 1. 9in Contrast: 1000: 1+/- 200 Product weight: about 32g/ 1. 1oz Synchronization frequency: 96Hz/ 120Hz/ 144Hz Light transmittance: 38% +/- 2% Viewing angle: 30 ( L/ R15 ) Synchronization method: DLP- link Power supply mode: rechargeable L mountain battery 85mAh Working time: fully charged 50hr+/- 5hr Working current: & lt; 1. 8mA Product color: blue black Applicable models: many meters, for nuts/ Sony/ BenQ/ Epson/ Panasonic/ Acer/ Hitachi/ Sharp and many other DLP projectors ( support 3D ) Package List: 1* 3d Glasses 1* USB Data Cable 1* Instruction Manual 1* Wiping Rag ( random color ) Original high-transparency lens, support 1080P high-definition film source, stable performance and no frame loss, which bring you a better experience. High transparency, clear and vivid image quality. With less than 1. 5ms response and light valve LCD lens, the light transmittance is increased by 8%. High transmittance and high contrast make the picture clear and dazzling, effectively reducing ghostin 78 wide viewing angle; LCD lens increased by 10%, 178-degree wide angle signal receiving window design, so that you can feel shocking 3D effect in anywhere of your home. Large-capacity rechargeable polymer lithium battery; built-in 85mAh polymer lithium battery, long battery life, durable and environmentally friendly, full play for 50 hours using time. Original high-transparency lens, support 1080P high-definition film source, stable performance and no frame loss, which bring you a better experience. High transparency, clear and vivid image quality. With less than 1. 5ms response and light valve LCD lens, the light transmittance is increased by 8%. High transmittance and high contrast make the picture clear and dazzling, effectively reducing ghostin 78 wide viewing angle; LCD lens increased by 10%, 178-degree wide angle signal receiving window design, so that you can feel shocking 3D effect in anywhere of your home. Large-capacity rechargeable polymer lithium battery; built-in 85mAh polymer lithium battery, long battery life, durable and environmentally friendly, full play for 50 hours using time.