BiPhasic Waveform

A description of the output waveform of a medically safe TENS or E-Stim unit. All E-Stim units use AC signals for safety, and BiPhasic means the waveform has what appears to be two 'sides' a positive and a negative. All E-Stim Systems power boxes produce Biphasic AC waveforms.

Any unit producing a DC output will cause skin damage and should not be used for erotic play.