As an iPhone user, you may want to have an unique iphone ringtone. So M4A to M4R Converter is designed for you to convert any video or audio files you like to M4R iPhone ringtone format. The Converter supports converting AVI, MPEG, WMV, DivX, MP4, H.264/AVC, AVCHD, MKV, RM, MOV, XviD, 3GP, WMA, WAV, RA, M4A, MP3, AAC to M4R iPhone ringtone, and transfer the converted M4R ringtone to iPhone directly.

Note: Support iPhone OS 3.0/3.1. and Windows XP/Vista/7

Guide: easily convert M4A to M4R with M4A to M4R Converter

Launch the M4A to M4R Converter, and you can see its friendly interface:

Firstly you need to click button to activate file adding window.

Secondly click "Add File" button to select the m4a files you want to set as iPhone ringtone. All added files will be listed on this window.

Thirdly edit the file. Drag the two sliders to reset start time and end time or change the number to make it. Click "Play" button to enjoy the loaded file.

Forthly set Local Output File path to store the converted file by clicking "Browse" button. Of course, you can keep the defaulted one.

Fifthly click "Import" to activate the program. The Converter will automatically work. Finally it can import the converted ringtone to your iPhone automatically.

The M4A to M4R Converter is so powerful that you can set any video or audio file you like as your iphone ringtone. Have a try.