This Spirit Box randomly scans banks of audio in reverse from real EVPs. This ITC tool does not contain words or sentences. Select the speed with the plus minus buttons. Real-time echo (microphone access is required for this feature). External speaker recommended for echo. Adjust the microphone sensitivity with the slider to avoid feedback noise. This is not a toy, this tool is intended for experimentation in the ITC. Disclaimer: No one can guarantee spiritual communication with any ITC tool. This app is based on our own theories and investigations of the paranormal field.