PC-free models offer convenience and facilitate fluent presentations by allowing presentations to be accessed via USB drives. Load your PowerPoint presentations onto a thumb drive, plug it into a USB compatible model, and simplify presentations. Starting off the presentation in an organized and professional manner will set the tone for the remainder of it or organization and professional appearance is essential for executing effective presentations. Leave your at laptop home and make your presentation from your mobile device. Presentations and teaching materials can thus be prepared on a computer and then presented from your mobile device whenever desired.