Dark Music button plays background music as trigger, composed by Mattia Cupelli - http://www.mattiacupelli.com
It has a manual mode that goes from 25 to 1000 ms speed, and an auto mode that goes from 25 to 500ms each time it trigger audio.
Echo button access microphone to create realtime echo (adjust mic. input with slider). Recommended bluetooth speaker.
Rec. Button access camera to shoot a videoclip of your session (in some devices may not work with echo activated, restart the app and without pushing echo you will access camera).
Disclaimer: Nobody can guarantee spirit communication with any ITC tool. This app is based in our own theories and research of the paranormal field.