The Sonic Relief Ultrasound Device is a portable pain therapy medical device designed for use in orthopedics, physical medicine & rehabilitation, and rheumatology. This device provides ultrasound therapy to help alleviate pain and inflammation in a variety of medical and sports-related applications. The brand, Sonic Relief, specializes in developing cutting-edge technology to deliver effective and efficient pain relief for patients. Pre-owned tested and working. Includes everything except gel. See photos.