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BP892CT4
The Audio-Technica BP892CT4 MicroSet Subminiature Headset Microphone (Black) features a lightweight, super low-profile ear-loop that may be flexed to conform to all sizes. Its omnidirectional capsule is highly sensitive and minimizes off-axis noise while enhancing detail. High sound pressure handling makes it an ideal choice for singers, actors, presenters, etc.
Specifications
Here are the key technical specifications for the Audio-Technica BP892CT4 Omnidirectional Condenser Earworn Microphone (or the BP892xCT4 model which is the current version, as the specifications are consistent):
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Element Type: Fixed-charge back plate, permanently polarized Condenser
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Polar Pattern: Omnidirectional
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Frequency Response: 20 Hz to 20,000 Hz
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Open Circuit Sensitivity: $-43 \text{ dB } (7.2 \text{ mV}) \text{ re } 1 \text{V at } 1 \text{ Pa}$ (for BP892x model, earlier models were $-49 \text{ dB}$)
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Maximum Input Sound Level (SPL): 136 dB SPL at $1 \text{ kHz}$ at 3% T.H.D.
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Dynamic Range (Typical): 104 dB
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Microphone Capsule Diameter: Only $2.6 \text{ mm}$ (sub-miniature)
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Termination (Connector): TA4F-type connector (for use with Shure wireless bodypack transmitters)
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Wired/Wireless Use: Designed for Wireless systems (less power module)
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Weight (Microphone/Earset): Approximately $2.6 \text{ g}$ ($0.09 \text{ oz}$)
