The ETS Powercure Handheld Red Light Laser Therapy Machine by Exercise Therapy Systems® is a powerful device that utilizes red light wavelengths to enhance cellular energy and the number of mitochondria in cells. This can help to improve performance and alleviate muscle stiffness, soreness, and swelling. It's an ideal tool for professional trainers and athletes, as well as anyone looking to optimize their performance. Additionally, it can be used on dogs, other pets, and humans.