Aver vision allows the presenter to engage the audience with quality images at HD720p output resolution and excite them with enlarged real-time details on a big screen. Better still, work in conjunction with the revolutionary A+ Interactive Software 2 to overlay text, highlight images from the visualizer, or pool resources from the Internet and computer to create innovative presentations. The Aver Vision CP135 is bound to transform your lesson or presentation into an enriching experience .The item come with a power supply,