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Sony ECM-77BC Omnidirectional Lav Mic with SMC9-4P Connector

Omni-Directional Electret Condenser Microphone. Supplied with Sony 4-pin SMC9-4P connector for use with WRT-8B/822A/822B UHF-synthesized transmitter, or DWT-B01 bodypack transmitter.


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Sony Omni-Directional Electret Condenser Microphone with 3.9 ft cable and SMC9-4P connector. The ECM-77BC/9X includes enhanced shielding increasing the microphone's immunity to RFI. This version can easily be identified by a gray colored sleve covering the mic cable at the BC connector


  • Miniature, omni-directional electretcondenser microphone.
  • Performance and reliability in studio,ENG, and EFP applicationsChoice of model variations to suit specific user requirements.
  • Wide frequency response,high sensitivity, and low-noise characteristics.
  • Miniature design makes it easy to conceal.
  • Ideal for use with DWT-B01

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General Specifications Detail:
Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-directional
Sensitivity -52.0dB ±2dB
Dynamic Range 90dB or more
S/N Ratio 64 dB or more
Inherent Noise (0dB=20µPa) 30 dB SPL or less
Induction Noise from External Magnetic Field 5 dB SPL or less
Wind Noise 40 dB SPL or less (with windscreen, at 2 m/s)
Max SPL (dB SPL)(0dB=20µP) 120 dB SPL
Connector BC type. Supplied with Sony 4-pin (SMC9-4P) connector
Cable Length 3.9 feet
Power Requirements DC 1.1 to 10.0V
Dimensions 1/4 diameter X 1/2 inch (Microphone head)
Weight 0.9 oz