All you need in order to use this tool is your computer's microphone. Once you open the tool and pick the tone you want, everything you say comes out modified.
The values you can choose using the equalizer include: volume, treble, bass, frequency, and mono or stereo output. Thank to these options, Voxal Voice Changer is a really fun tool you can use to prank your friends while talking on VoIP.
Alternatively, the tool could be useful for making a tutorial or for posting a video comment anonymously, so that no one recognizes your voice.