<https://au.pcmag.com/migrated-29281-bluetooth-headsets/60305/plantronics-voyager-4220-uc-review>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://au.pcmag.com/migrated-29281-bluetooth-headsets/60305/plantronics-voyager-4220-uc-review>