Live Voice Changer funktioniert nicht

Plug your iOS device into a stereo system and then, use the foldback function with one of the reverb effects, you can do vocal exercises, get everyone's attention, make announcements.  It gives you a chance to easily confuse your friend with phone calls, voice chats of game or social apps and so on.  The app can change your voice in real time: speaking to the microphone of the iOS device, the sync output in the speaker is changed voice.  Even you can send the playing sound to your friends with talkback function of social apps.  With the voice-changing function and reverb effect function, you can record very special audio files.  And even you can tune the tone color with a special designed 12-band equalizer to make the voices more natural.  And you can share the audio to your friends with social apps.  It is also the live microphone which has 15 reverb effects.  With the effects, your voice can be polished more beautiful.  It's a perfessional voice recorder too.  There are 11 live voices you can use.  What you need are the app, another phone and a set of soundboxes.  You can use fake gender voice:male/female.  You can act as tom cat, squirrel, Darth Vader, etc.  It support bluetooth and airplay output device.