Android application package named 雷达电视 (Radar TV), version 3.7, at 18.7 MB. It is a TV application for Android-based televisions or set-top boxes; the name gives no device model, so compatibility must be checked separately. APK files are installed by sideloading from a USB drive or via ADB once unknown sources are allowed. Technicians sometimes need such apps after a firmware reflash restores a box to bare settings. Scan the package and verify it suits the device's Android version before installing.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tv_software. Enginerys does not host this file.