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Talk and listen without holding the radio. Clear sound performance. High-quality Earpiece provide clear audio communication. Fashionable PTT design with metal clip. the Earpiece may be secured to ...
Acoustic tube and Medium Earmold easy to be Replaced and operated; Replacement Acoustic tube: Covert acoustic air tube transmits more clear sound and protect the eardrum from sound wave ...
Before the MP3 was the Walkman and before that was the "tranny" - the transistor radio. Personal radios existed before their mass popularity in the 1960's, but then they became a teenage 'must-have'.
If you make crystal radios, you’ve probably got a few crystal earpieces. The name similarity is a bit coincidental. The crystal in a crystal radio was a rectifier (most often, these days ...