APPARATUS AND METHOD FOR BOOSTING SOUND IN A DENTA-MANDIBULAR SOUND-TRANSMITTING ENTERTAINMENT TOOTHBRUSH
A device and method for transmitting sound waves between a signal source and a user's ears, wherein the sound waves bypass the air. The sound waves are conducted by the user's teeth and bones to the user's ears, where they are perceived as sound. Sound~transmitting toothbrushes and th...
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Sprache: | eng ; fre |
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