This video player is a versatile MP3 player that supports various formats such as MP3, MP4, MOV, and more. It offers a wide range of features for playing videos and songs, including support for HD, Full HD, 4K, and Ultra HD video files. It is considered one of the best powerful HD video players for Android. Some of its key features include support for popular formats, the ability to cast videos to TV, a built-in video downloader and MP3 player, and support for multiple subtitles and video downloads. It also offers features like playing videos in a pop-up window or split-screen, hardware acceleration, video locker and hider, playback speed control, sleep timer, and more. Additionally, it has a built-in gallery to manage photo albums, online trending video playback, and smart gestures for volume and brightness control.

The video player supports a wide range of formats, including MKV, MP4, M4V, MOV, 3GP, FLV, WMV, RMVB, TS, MP3, MPG, and more. It can handle HD, Full HD, Ultra HD, 4K, and 1080p videos smoothly. It also offers the option to play videos in the background, allowing for multitasking. The floating video player feature enables users to watch videos while performing other tasks, and the app provides complete control over media files, including recently played video queue, playlist creation, duplicate media file filtering, and search functionality. It also includes a file explorer and manager to identify and manage video and music files on the device and SD card.

In terms of permissions, the app requires access to the device's storage to read and write files, manage local storage, and save downloaded subtitles. It is important to note that the app is not affiliated with YouTube, Facebook, Instagram, or other social media sites. The Rocks video player for all formats is free to use, and the developers welcome suggestions and feedback from users.