If you have comments and feedback, please send an email to [email protected], I will solve these problems It supports converting MP4 to MP3, trimming video length, internal video cropping, and composing your own video and music without any third-party watermarks. You can quickly extract MP3 songs from videos and select third-party songs to write into video files. ● Video conversion supports multiple formats. ● Audio clipping and audio format conversion. ● Multiple videos can be connected.