iCoolsoft MP4 to MP3 Converter for Mac is a professional Mac MP4 to MP3 converting tool, that can extract audio parts from MP4 videos to MP3 files. This MP4 to MP3 Converter for Mac also helps convert video to audio and audio to audio, supporting all popular formats. You can also use this iCoolsoft MP4 to MP3 Converter for Mac to specify a segment of MP4 video to convert, or join multiple MP4 videos and convert their audio parts to an entire MP3 file.