Leap MP3 To Amr Mobile Ringtone - Version 4.0 Leap MP3 To Amr Mobile Ringtone Converter is an easy and fast audio converter tool.It can convert MP3 to AMR,OGG with excellent quality.It is good at converting in batch once. You can get the good audio quality with pleasure. You can set the encoding parameters including audio sample ,channels etc to get the best quality. You can also preview the Input/Output files.Very easy to use for even a beginner. I think your making the converting time is easy and enjoyable.Input format:MP3;Output formats: AMR,OGG;It can convert in batches.Convert with very high speed and quality.User-friendly interface.You can control the parameters such as audio sample ,channels etc.