The BFST does not pulsate or vibrate during treatments. You can expect to feel a gentle warming sensation during the twenty minute treatments - some people also feel a slight tingling, but not everyone experiences that.
The BFST produces electromagnetic energy in order to increase the circulation and heal the soft tissue - the warmth you feel is just a byproduct of that energy. The BFST is
not like a TENS unit - TENS units use electrical stimulation to shock your nerve endings, and TENS units are not effective on soft tissue injuries. The BFST is very different - the treatments actually heal you rather than just treating the pain.
The link below contains detailed information about how the BFST works.
https://kingbrand.com/BFST-Home.php
