A pressure wave is formed via a projectile by using accelerated compressed air. The compressed air is generated by an electronically-controlled balI listic-pressure compressor. Using elastic impact, the kinetic energy of the projectile is transferred into the probe of the applicator and then into the client’s body. Consequently, during the treatment, the end of the applicator must be in direct-contact with the skin and subcutaneous tissue. Shockwave is aimed at the affected areas that are the source of chronic pain. The influence of the shockwaves causes to the dissolution of calcium deposits and leads to better vascularisation. The after-effect is relief from the pain.