The accompanying manual will become your treatment bible. It will guide you to the appropriate areas of low resistance for many common muscular pain conditions. As for the actual application, it couldn’t be easier. Place the unit’s Point Finder (PF) on the skin – either directly or through a loosely knit fabric. When the PF is near one an area of low resistance, the built-in detector will emit a high-pitched tone. Once the PF has found an area of low resistance, the green indicator light located on the back of the unit will turn off, and the tone will increase in pitch. Fast-acting relief begins by pushing and holding down the treatment button.