This ultrasound is portable anavailable on the market. It has many excellent features and offers streamlined, intuitive features that are better that your typical ultrasound. Yet, it is compact and easy to use for the average person to use. As a robust ultrasound, it delivers the best features to capture your attention for all types of use. Compare Chison Sonotouch 30 Power Supply with Diasonics, Esaote, TENS, Toshiba, GE, Medison, ATL, Dynatron, Apogee, US Pro, HP, Chison, Philips, EMS, SonoScape, Mettler, Chattanooga, Siemens, Sonosite, Sonicator, Terason.