Electret Condenser Lavalier Microphone

$512.00 U.S. List Price


Perfect for television applications, Sony's ECM77B Omni-Directional Electret Condenser Microphone is a miniature lavalier microphone designed to be inconspicuous. This tiny mic runs on either phantom power or AA battery operation. The ECM77B comes with an XLR connector


  • Omni-directional lavallier condenser microphone with AA battery power supply and XLR connector
Features Benefits:
High-performance frequency response: 40 -20,000 Hz
Black finish
Two-way powering system: AA-size battery or external power supply

General Specifications Detail:
Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-directional
Sensitivity -36.5 dB (15mV)
Dynamic Range 90 dB
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 B type. Supplied with XLR connector in power supply unit (single AA size battery)
Cable Length 9.8 feet
Power Requirements DC 1.5 V, AA size battery or +48V phantom power
Dimensions 1/4 diameter X 1/2 inch (Microphone head)
13/16 diameter X 5 1/4 inch (Power unit XLR type)
Weight 4.3 oz (Includes Mic and Power Supply)

Supplied Accessories

Model: Description: U.S. List Price:
S.H. tie clip (x 1)
S.V. tie clip (x 1)
D.H. tie clip (x 1)
M. windscreen (x 1)
Operating instructions (x 1)
Microphone case (x1)

Optional Accessories

Model: Description: U.S. List Price:
SADS77 Safety Pin Type Clip Pack $200.00 Get details
ADR77B Wind Screen Pack $131.00 Get details
ADC77 Colored Wind Screen Kit $114.00 Get details
SADW77B Horizontal Double-Clip Pack $175.00 Get details
SADH77B Horizontal Single-Clip Pack $200.00 Get details
SADV77B Vertical Clip Pack $224.00 Get details
ADKIT77 ECM-77 Accessory Kit $175.00 Get details
ADC77B Black Windscreen For ECM-77 $152.00 Get details


Description: Release Date: Type/Size:
Sony Lavalier Microphones 08/04/2009 pdf / 1,201K Download now

Product Manual

Description: Release Date: Type/Size:
ecm-77b-op-manual.pdf 01/01/2003 pdf / 113K Download now