Sony ECM-77BMP Omnidirectional Lav Mic

Omni-Directional Electret Condenser Microphone. Supplied with a 3-pole locking mini plug for use with the bodypack transmitter included in the UWP series.

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The ECM-77 is probably the most often seen lapel microphone on TV and it is used widely in both studio production and on location. Its popularity is based on a combination of excellent sound quality, robust construction and an attractive cosmetic design. This microphone is the ECM-77BMP which is supplied with a 3.5mm locking jack for use with WRT-805 and UWP series wireless transmitter

  • Hands Free

    As a lapel microphone, the ECM-77 is an alternative to the traditional hand held microphone and being 'hands free' it allows the presenter to concentrate on her/his performance.

  • Professional Image

    The ECM-77 is probably the most seen microphone on TV and its compact design creates a professional image.

  • Easy and Familiar Operation

    The ECM-77 is an essential tool for achieving good quality voice recording. The microphone's capsule is designed for voice pick-up with an extended frequency response and impressive sensitivity. The popularity of the microphone in TV production means that most sound people will be familiar with using the ECM-77.


  • Designed for high quality voice pick-up

    The ECM-77's capsule features a voice emphasis curve, extended frequency response and sensitivity.

  • Minute size

    The capsule has a diameter of only 5.6mm and is 12.5mm long.

  • Ready for wireless systems

    The ECM-77BMP is compatible with the Sony Freedom WRT-805 wireless transmitter, providing high quality wireless microphone systems for video production.

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