iCoolsoft M4R Converter for Mac is a powerful Mac M4R converter tool that can create M4R ringtone files for iPhone. It can convert MP3 to M4R AAC to M4R M4R to MP3 and so on. You can also use it to split and merge files to customize the output M4R files. This Mac M4R Converter can help you convert songs of any format to M4R files and extract audio parts from videos and convert to M4R ringtones. You are allowed to adjust the M4R sound quality and edit source files to specify any segment to convert. This M4R Converter Mac tool is the best software to convert files to M4R and convert M4R to other popular audio files. Have a try with it and convert all music files to iphone ringtones. Features Convert M4R files iCoolsoft M4R Converter for Mac can finish all the M4R related conversions on Mac including convert music files to M4R and convert M4R to other audio formats like AAC AC3 AIFF AMR AU FLAC MP3 M4A MP2 OGG MKA WAV WMA etc. Video to M4R converter This tool also enables you to extract audio tracks from video to M4R files. All popular video formats are supported as the input and this tool can recognize the multiple sound tracks in video for you to choose. Make your own iPhone ringtone M4R file is used by iPhone as the ringtone file. By converting files to M4R you can create your own ringtones for iPhone. Supporting almost all video/audio formats and providing powerful editing functions this tool can help you convert your favorite songs movies videos etc. to personalized iPhone ringtones. Other mobile phones are also supported. Customizable profiles This handy tool provides rich profiles to facilitate your converting. Moreover you can adjust the encoding settings to modify the profile and save as your own one. Fast speed and high quality iCoolsoft M4R Converter for Mac only needs your several clicks to finish the converting with fast speed and high output quality. It is the most powerful and handy tool to convert