About: http://webisa.webdatacommons.org/110374046

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	This device and method are particularly useful in communication devices which utilize a side tone electronically transmitted from the microphone into the speaker element at the user's ear.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com