RTA is an application that allows you to create your own ring tones from any new or existing voice, sound, or audio file. You do not even have to be a musician. You do not need a cable, infrared, or Bluetooth to use RTA. RTA supports most mobile phone models including Nokia, Motorola, Samsung, Sony Ericsson, Siemens, Alcatel, Ericsson, Sony, Audiovox, NEC, Panasonic, Philips, Sagem, Sendo, Palm, Windows CE, and any polyphonic or real tone supported mobile phone, PDA, or Smart Phone. RTA supports MP3, WAV, and MIDI.