ceramic earphone
1PlayStation Portable Slim and Lite — Infobox CVG system title = PSP Slim and Lite | manufacturer = Sony Computer Entertainment|family = PlayStation type = Handheld game console generation = Seventh generation era lifespan = vgrelease|EU=September 5, 2007vgrelease|NA=September 6,… …
2Crystal earpiece — Crystal radio using piezoelectric earpiece Common piezoelectric earpiece used with portable radios A crystal earpiece, more properly called a piezoelectric earphone …
