Tennant BioModulator devices contain unique frequency sets to produce microcurrent electrical impulses, which are transmitted by electrodes in the device through the skin to interface with the body’s internal peripheral nervous system for the purpose of therapeutic intervention.

System feedback is the body's response to the stimulus, and the technology’s ability to detect, measure, analyze, and respond to the body. With each response, the electrical properties of the tissue change. The device detects the change and responds, resulting in the very next signal being modified. This is possible because of the development of modern high-speed microprocessors, which are able to establish a “cybernetic loop” between the electronic instrument and living body.