This is a DJI Smart Controller, which is a remote controller for specific DJI drones. Key features include: Built-in 5.5-inch 1080p display, eliminating the need for a separate mobile device. Runs a customized version of the Android operating system, specifically Android 7.1.2 as shown in the image. Features OcuSync 2.0 video transmission technology for stable, long-range connectivity. Designed to operate in a wider range of temperatures than smartphones.