PERGEAR 4xG15-DLP 144Hz 3D DLP-Link Active Glasses for Optoma/BenQ/Acer/LG Projector Cool appearance, very light, comfortable wearing;Humanity electronic design, convenient operation button. Adopt high speed LCD lenses, millisecond response time protect you from liable eyestrain. High transmission rate, ensure the perfect quality, no flickering, no ghost. Low-energy alarm function,Smart synchronization of working frequency Support all DLP-LINK 3D projectors such as: Optoma/ BenQ/ Viewsonic/ Acer/ Dell/Vivitek / Sharp/ LG/ NEC / Mitsubishi/ Ergonomic design. This 3D DLP-Link Active Glasses only weight for 27g. 96-144Hz frequency to achieve 1080 HD screen,Bring a smooth 3D viewing experience Single battery use up to 100 hours With CR2025 button cell battery, capacity up to 150MA . High-speed reactive liquid crystal lens with high contrast and transparency,Make the picture fresher and brighter A new generation of smart chips,Performance is more stable. The acceptable distance is about 10M. It can be worn on the basis of most common glasses.