Enjoy an exceptional viewing experience with these Optoma 3D Glasses (BG-ZD301). These lightweight glasses are stylish and are designed to provide you with a comfortable fit. These rechargeable 3D glasses offer up to 60 hours of use and may be recharged up to 1000 times, which means they are made to last for almost seven years of non-stop use. These glasses feature a long effective-distance range and are compatible for use with the majority of 3D DLP projection systems available on the market. These glasses include a USB charging cable, microfiber cleaning cloth, nose piece and soft carrying pouch.