A record-breaking throw distance of 18.8 cm allows the projector to be placed just inches from the wall, ensuring that nothing comes between you and your message: no shadows, no noise, no glare. Use it to display images of up to 80 inches in meeting rooms, training rooms, classrooms, shops, windows displays and anywhere there is a wall or flat surface to project upon. Flexible enough to mount on a wall or ceiling, or just on the edge of a desk. The PJ WX4141N/WX4141NI have built-in wired and wireless LAN connectivity. Clear the clutter by using your iPhone or iPad wirelessly for ultimate convenience and functionality. USB storage is also an option for those wanting a PC-free presentation, making it perfect for window or any other displays.Use the HDMI connection to play DVDs as well as any other audio-visual equipment. WX4141NI ONLY: Convert any hard surface into an interactive area with its built-in Interactive Kit. By using the electronic pen on the projector screen gives you the ability to mark up and make annotations to any visual content and save as PDFs for easy file sharing.