Optoma DLP 3D Projector features a brightness of 3500 lumens. This 3D projector supports HD quality videos and wireless connection to other devices. Use the Optoma S341 DLP 3D Projector for your presentations. Designed for offices and schools, this projector has high brightness, long lamp life, and energy saving features that make it economical for you. Also, this Optoma projector is easy to connect with multiple inputs, a built in speaker, and USB Power. You can also connect HDMI dongles such as the Google Chromecast and the Optoma HDCast Pro or a laptop, PC or Blu ray player for clear projected images and sound. Sporting a lightweight and portable build, this projector is easy to carry, install, use, and then uninstall.