Some of my studentrs in school use the mobile version where you only have to carry the recorder with you as the microphones are too sensitive to use in class with the general noise around you and it picks up too much background. I have been using VRS in school for about 12 years, initially with a student with cerebral palsy who had little speech, so, it just goes to prove, you do train the software to your voice pattern and not the other way round.