The Extron award-winning PoleVault® Systems are easy-to-use, easy-to-install, economical classroom A/V systems that incorporate twisted pair technology for signal transmission. They also include network connectivity for web-based system management and control.There are three standard PoleVault System packages which streamline the design and procurement process. These two-, three-, and four-input packages include all the necessary audio and video switching, audio amplification, system control, source connectivity, speakers, mounting hardware, and cabling for a complete classroom A/V solution. All that remains is to add the video projector, projection screen, and sources.