Buy on Amazon.com : http://www.amazon.com/gp/product/B008PQJXFO?tag=lottalatte-20 <br /> <br />Optoma BG-ZF2100GLS Active Shutter 3D-RF Glasses <br /> <br />Improved contrast and black level <br />Lightweight stylish design with interchangeable nose pieces for customized comfort <br />Always in sync - RF Radio Frequency based synchronization with 3D content <br />Rechargeable long-life Lithium polymer battery <br />Designed for use with Optoma projectors with 3D VESA output and synchronization system
