The E.F.P.'s "real time, high visibility" green with red center LED display, allows others to view E.V.P. responses easily in dark locations. This feature allows users the ability to capture E.V.P. evidence on video. The device has a "white noise/ambient noise baseline adjustment" allowing the user, to set the baseline level on the devices illuminated scale. This provides a "visual reference" to see in real time any "addition" or "reduction" of proprietary frequency noise. The E.F.P.'s built in circuitry amplifies input signals to high levels allowing users to visually monitor E.V.P. responses at higher resolution. The input to the device has (1) 3.5mm stereo plug used to connect to any recording devices live audio output (earphone). The E.F.P. also has (1) 3.5mm audio output which can be used for earphone or mp3 type speakers. The E.F.P. has a "manual on/off switch" and built in "push button single LED navigational light". The E.F.P. operates on one standard "9volt" battery. The current regulation circuitry in the device provides hours of use.