The Audio-Technica AT831B(S4) is a miniature cardioid condenser lavalier microphone supplied with an in-line belt-pack power module. It delivers crisp, detailed sound with excellent rejection of background noise, making it ideal for stage, broadcast, worship, and presentation use. The included power module operates on either an AA battery or phantom power, providing maximum flexibility for wired applications.
Key Features:
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Miniature cardioid condenser lavalier microphone
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Includes belt-pack power module (AT8531)
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Natural, clear vocal reproduction with reduced ambient pickup
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Dual power options: phantom power (9–52V) or AA battery
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Supplied with clothing clip and foam windscreen
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Rugged and reliable for professional use
Specifications (Mic only):
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Polar Pattern: Cardioid
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Frequency Response: 40 Hz – 20 kHz
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Open Circuit Sensitivity: –46 dB (5.0 mV)
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Impedance: 200 ohms
