The Therasound EVO by Richmar is the most dedicated ultrasound therapy machine on the market. With Richmar's more than 45 years of experience, you are sure to have a high-quality ultrasound device that has been researched extensively for a better end user experience. The Therasound EVO features a dual-frequency design which offers clinical-grade ultrasound therapy in a variety of settings. It has industry leading BNR in both continuous and pulsed ultrasound duty cycles. With both 1 and 3 MHz frequencies available. This versatile device is both reliable and easy to use in a clinical setting. The Therasound EVO is proudly made in the USA and comes with a variety of accessories to choose from.