The best iPhone 4G Ringtone Creator:
Convert video/audio to iPhone 4G M4R ringtone
Trim audio length
4Easysoft iPhone 4G Ringtone Creator for Mac is the best Mac iPhone 4G Ringtone Maker to make iPhone 4G ringtone from any video and audio like AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4, DivX, XviD, MOV, RM, RMVB, MP3, WMA, AAC, etc.
This Mac iPhone 4G Ringtone Maker allows you to trim video/audio file and convert any preferred segment to iPhone 4G ringtone. Besides, it provides you with function to manage ringtone by removing it or renaming it.