This is a free HD video player for Android devices, with support for all popular video formats, including HD, Full HD, and 4K. HD X Player can also be used to play 3GP, FLV, MKV, MP4, MP3, etc.

The main screen displays a list of all the files in your device. You can choose to play a video from the device or from the external memory. You can also use the video player to create a playlist, add some music, and start playing it.

The playback controls are displayed on the screen, including a pause button and a play button. The volume slider can be used to adjust the volume of the audio. The screen can be locked, so you don't have to worry about your kids accessing other apps.