About: http://webisa.webdatacommons.org/393679187

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Full-duplex hands-free communication systems are commonly used for many applications, such as speakerphone, hands-free car kit, teleconferencing system, cellular phone, hands-free voice recognition devices, and so on.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk