The HF54 is the first and only Ultrasound cleared by the FDA for Hands Free Stationary Use. A true product of brilliance and innovation. The HF54 is a must have in every medical facility. The HF54 eliminates the two most common application errors associated with a traditional manual ultrasound treatment that have been shown to reduce the therapeutic effectiveness of ultrasound. Designed for more precision and clarity. The HF54 is a first of it's kind truly unique and incomparable out in the market . An excellent piece of equipment for any physicians medical facility . An ingenious creation indeed .