biometric voice recognition systems; communications apparatus; computer hardware; computer peripherals; data storage devices; digital video recorders; electronic monitoring apparatus, other than for medical purposes; facial recognition apparatus; image recognition software; memory storage devices; computer memory devices; electronic memory devices; network communication devices; computer networking and data communications equipment; communications networks; electronic surveillance apparatus; security surveillance apparatus; sensors, detectors and monitoring instruments; software; sound recording apparatus; speech recognition devices; video surveillance cameras; video surveillance systems; facial recognition software; voice recognition software