Top message: Ringtones by brealzz
Replying to: Re: Ringtones by blaisedinsd
you can export selections of audio as mP3 but simply name the output file as *****.midi It will warn you some players won't recognize it if it's named .midi instead of .mp3 but just say OK.
You can also boost the volume if needed.
Shop for accessories specifically compatible with the Samsung SCH-U620.