About: http://webisa.webdatacommons.org/209992910

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	104 to enable a user to hear sound such as voice communication and other audible signals.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com