a pair of black trs tip ring sleeve earphones bound by a cable tie white backdrop

white isolated backdrop background pairs pair black trs trrs tip ring sleeve tip-ring-sleeve earphones earphone ear ears phone phones bound bind cable tie ties plastic plastics connect connector connectors wire wires fine thin finer thinner wired obsolete audio sound sounds music playback piece pieces -ear type types insert inserting plug plugs earplug earplugs contacts diameter diameters size sized sizes fit slot slots compatible compatibility