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Product Highlights
  • Lavalier Microphone
  • Omni-directional Pickup Pattern
  • Electret Condenser Capsule
  • BC Type with Sony 4-pin Connector
  • Includes clip & windscreen
Sony ECM77BC9X Small Capsule Lavalier OMNI Mic for UWPD Sony ECM77BC9X Small Capsule Lavali...
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Discrete omni-directional lapel Electret condenser microphone

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-77BC supplied with a 4-pin locking plug for use with WRT-822 and WRT-8B wireless transmitters

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-77BC is compatible with the WL-800 beltpack transmitters (WRT-822 and WRT-8), providing high quality wireless microphone systems for video production.

What's Included

ECM77BC9X Microphone Head (4-pin Hirose)
Single/horizontal type tie clip
Metal-mesh type windscreen


Product Specifications


Connector BC type. Supplied with Sony 4-pin (SMC9-4P) connector
Mic Cable 1.2 m (3.9')
Power Requirements DC 1.1 V to 10.0V
Power Consumption 0.4 mA or less
Dimensions φ5.6 X 12.5 mm (Mic head)
φ1/4 X 1/2 inches (Mic head)
Mass Approx. 25.5 g (0.9 oz)


Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-directional
Sensitivity -39.0 dB (11.2 mV)
Output Impedance 2.5kΩ±30%, Unbalanced
Dynamic Range 90d B or more
Signal-to-Noise Ratio 64 dB or more
Inherent Noise 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)
Maximum Input Sound Pressure Level 120 dB SPL

Questions & Answers

Sony ECM77BC9X Small Capsule Lavalier OMNI Mic for UWPD

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