A 3MHz ultrasound machine refers to an ultrasound system that operates at a frequency of 3 megahertz (MHz). Ultrasound machines use high-frequency sound waves to create images of the internal structures of the body. The frequency of the ultrasound waves determines the depth of penetration and the resolution of the https://www.skrilix.com/product-category/physiotherapy-machines/ultrasound-therapy-machines/