Disclaimer: Video is meant to illustrate the capabilities and uses of PSTEC™ but for obvious reasons, no absolute guarantee of success is made or implied. People vary and what may be extremely effective for one person may be less so for another. Users should always begin by using the 100% free PSTEC system. That way you can be sure it works for you before you make a purchase of the optional and additional audio systems. This video is here to help you understand the reasons why it needs to be used in certain ways and in what sequence. Also why you need certain optional extras for even better results.