What medical professionals say

"I am now using the X4000 - a biofeedback wave therapy device - which is very simple to use. With this device, I have seen helpful and promising results in a range of conditions, including: muscle-skeletal pains, small joint pains (especially where close to the skin surface), cervical nerve roots pains, ligamentous pain, acute muscle injury and skin wounds. My plea is for you to make the X4000 available to my patients and the general public as soon as can be."
Dr I Leith MB, BS (University of London)