Firestorm LT 2.0! DLP link 3D glasses by True Depth 3D rechargeable & lightweight (compatible with Benq, Optoma, Acer, Vivitek, Dell Etc) & All DLP HD 3D TVs At 96 Hz, 120 Hz and 144 Hz! (4) NO EMITTER REQUIRED: DLP link technology syncs directly with a white (or sometimes red) flash that is emitted from the bulb and reflected onto the screen. The flash is imperceptible to the human eye making these glasses ideal for your home cinema without the need for additional emitters or sync mechanisms WORKS WITH ALL DLP LINK 3D PROJECTORS AND DLP LINK 3DTVS: Nearly every 3D projector today uses DLP link technology making these glasses ideal! Legacy TVs from Samsung and Mitsubishi also use DLP link technology (Samsung manufactured DLP link compatible 3D ready TVs from 2005-2009 or Mitsubishi DLP TVs 2005-2015) IMPROVED DESIGN AND CRYSTAL CLEAR LENSES: The removable nose pad and optionally removable frames allow for maximum comfort for various face sizes and those who wear prescription glasses! The crystal clear lenses create the most vivid 3D experience you'll find! LIGHTWEIGHT LOW COST: These glasses are easy on the eyes, nose and face and even easier on the wallet! Don't sacrifice quality for cost! These glasses get you the best of both worlds and can be worn for hours without any discomfort! UNMATCHED CUSTOMER SUPPORT: We are a family owned U.S. based company. Unlike the competition, 3D is our passion and our business. We offer unmatched technical and customer support! We insure 100% customer satisfaction We also offer a full 1 year hassle free warranty (we simply replace your glasses if anything goes wrong within 1 year)