This Atl Hdi 4000 Transducers is the best type of ultrasound machine available on the market. It has many excellent features and offers streamlined, intuitive features that are better that your typical ultrasound machine. Yet, it is compact and easy to use for the average person to use. As a robust ultrasound machine, it delivers the best features to capture your attention for all types of use. Compare Atl Hdi 4000 Transducers with HP, Dynatron, Chison, Philips, Toshiba, Esaote, ATL, Medison, Fukuda Denshi, Diasonics, Terason, Siemens, Sonosite, Apogee, GE.