Interacoustics Callisto Gebrauchsanweisung Seite 9

Callisto™ Instruction for Use -GB
Page 5
Great care should be exercised by the handling of earphones and other
transducers, as mechanical shock may cause change of calibration.
The specification for the instrument is valid if the instrument is operated within the
environmental limits specified in technical specifications.
Supply voltage: USB-powered (USB Type B connector).
To prevent system faults take appropriate precautions to avoid PC viruses and
similar.