The Dynatron 125 Portable Ultrasound with Soundhead carries sound waves through muscle, nerve, bone and connective tissue in order to reduce pain, muscle spasms and joint contractures. Feature rich, the portable ultrasound unit has a head warming feature, coupling sensing, and the ability to modify treatments according to time, power, frequency, and duty cycle. An optional battery operation and a compact and lightweight size make the Dynatron 125 Portable Ultrasound with Soundhead easily transportable. Each unit comes with 5cm sound head.