6.0*2.7mm Inner Condenser Microphone unit ( MIC6027)
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Excellent sound quality 28mm speaker with plact...
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6 mm Unidirectional Electret Condenser Micropho...
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Professional waterproof electronic microphone 4...
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Noise cancelling microphone for Headset microph...
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Passive Piezo Buzzer 7.5*2.5mm Audio Transducer...