About: http://webisa.webdatacommons.org/166709662

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	The fact that there is a circuit and a microphone that measures the sound, and that extra sound is added to what is coming from the stereo to actively cancel the ambient sound, well, that is what you want.
http://www.w3.org/ns/prov#wasQuotedFrom	creative.com