About: http://webisa.webdatacommons.org/52023018

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	When connected to a piezoelectric speaker, the device emits ultrasonic tones from 8KHz~40KHz, ideal for repelling insects, birds, rodents and other pests.
http://www.w3.org/ns/prov#wasQuotedFrom	mcmelectronics.com