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HEARING AID LEGISLATION AND CODES
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1-piece acoustic Acousticon amplifier Audiphone Barrette battery behind-the-ear Black metal Body bone conduction carbon aid Carbon mic carbon microphone ceramic mic Chrome circuit Corp CROS Crystal mic deaf device diameter diaphragm died distortion double mic ear canal ear trumpets earmold earphone earpiece eartip electric Electronics Established ext rec eyeglass firm fitting frequency response Front mic gain Gold metal hearing aid dealer hearing aid manufacturers hearing loss In-ear input instrument June located Maico mic grill mic opening microphone Modified monaural Opt AGC Oticon output peak plate president receiver resistor Sept shown in Figure signal silver Sonotone sound pressure sound pressure level speaking tube Submodels Super table model telephone thick tion Top mic Tradename transistor tube hearing aid vacuum tube vacuum tube hearing vent vibrator vol control voltage volts wearable York City