The Therasound EVO Series has evolved into this revolutionary Therapy System. With the Applicator Plug and Play (APP) concept, you have the flexibility to create a custom Ultrasound or Ultrasound/Laser Hybrid. The combination of a modern compact design with the Rugged, Reliable Rich-Mar Electronics, has been used by clinicians for over 40 years. The Therapy Hammer is a universal 2cm and 5cm applicator combined into one single design. It is able to utilize 1 or 3 MHz ultrasound technology.