About: http://webisa.webdatacommons.org/439802671

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	Some of those older stereos need to have the speakers off before it sends a signal to the headphones, or there is a switch to activate the headphones. iSpec Member with 84 posts.
http://www.w3.org/ns/prov#wasQuotedFrom	techguy.org