... PC support INPUT: ID, Gender, Age, Body HeightOUTPUT:[Body Composition]: Bodyweight (auto detected), Total Body Water(TBW), Protein Mass, Fat Mass, ... so no large number samples acquired. MRI scanning does no harm to body, so you can do as many samples ... real multi-frequencyDifferent frequency has different effects on different body composition. Frequency lower than 50KHz cannot tell the extracelluar ...