bn:01601069n
Noun Concept
Categories: Headphones, Audio electronics, Electronics stubs
EN
crystal earpiece
EN
A crystal earpiece is a type of piezoelectric earphone, producing sound by using a piezoelectric crystal, a material that changes its shape when electricity is applied to it. Wikipedia
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EN
A crystal earpiece is a type of piezoelectric earphone, producing sound by using a piezoelectric crystal, a material that changes its shape when electricity is applied to it. Wikipedia
Wikipedia
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