About: http://webisa.webdatacommons.org/402024699

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 generated sound waves are a composite output in the form of a random pattern of harmonics in the ultrasonic frequency range noramlly inaudible to humans and intolerable by pests such as rodents.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com