This document summarizes Celtra's outstream video advertising capabilities for mobile. It discusses how outstream video ads are designed specifically for the mobile experience by being short, vertical, and often muted. It provides examples of different outstream video ad formats including vertical video interstitials, interscollers, and pagebreaks. The document also notes the benefits of Celtra's outstream video technology, such as fast loading times, high video quality, and improved user experience and reporting capabilities. Publishers and ad platforms can expand their mobile video inventory and improve user experiences by integrating Celtra's outstream video ad formats.