Sony ECM-77B Lavalier Mic

Overview
The ECM-77B is a discreet and convenient hands-free microphone option for presenters. As a lapel microphone, it provides an alternative to the traditional handheld microphone, allowing the presenter to focus solely on their performance. The microphone has a high-performance frequency response of 40-20,000 Hz and can be powered by either AA batteries or an external power supply. Its popularity in TV production also means that it is easy and familiar to use for most sound professionals.

The ECM77B is a miniature lavalier microphone that is designed to be inconspicuous. It is perfect for use in studio, ENG, and EFP applications and comes with an XLR connector. This tiny microphone can be powered by either phantom power or AA batteries, making it a versatile option for various settings. With its discreet design and convenient hands-free operation, the ECM77B is a great choice for presenters looking for a reliable and easy-to-use microphone.

Summary
Battery Mount / Type: AA
Connectivity: XLR-3-12C
Direction: Omnidirectional
Microphone Type: Lavalier Microphone
Phantom Power: 48
Included in box
1x Single/vertical type tie clip
1x Single/horizontal type tie clip
1x Operating instructions
1x Mic case
1x Metak-mesh type windscreen
1x Double/horizontal type tie clip

About the Sony ECM-77B Lavalier Mic
Discreet wired microphone

The ECM77B is a miniature lavalier (tie clip) microphone designed to be inconspicuous. This tiny microphone runs on either phantom power or AA battery operation and comes with an XLR connector. Useful for studio, ENG, and EFP applications.

Hands free microphone

Allows the presenter to concentrate on her/his performance.

Audio Section
Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-directional
Sensitivity *[1] -52.0 dB ±2 dB
Output Impedance *[2] 150Ω±20%, Balanced
Dynamic Range 90 dB or more
Signal-to-Noise Ratio *[3] 64 dB or more
Inherent Noise *[4] 30 dB SPL or less
Induction Noise From External Magnetic Field *[5] 5 dB SPL or less
Wind Noise *[6] 40 dB SPL or less (with windscreen)
Maximum Input Sound Pressure Level *[7] 120 dB SPL
General Section
Connector B type. Supplied with XLR-3-12C (male) connector in power supply unit (single AA size battery)
Mic Cable 9.8 feet
3 m
Power Requirements DC 1.5 V (AA size battery) or +48 V phantom power
Battery Operating Time Approx. 6000 h (LR6)
Power Consumption Internal battery: 0.3 mA or less
External battery: 2 mA or less
Dimensions *[8] o5.6 X 12.5 mm (Mic head)
o20 X 133 mm (Power unit XLR type)
o13/16 X 5 1/4 inches (Power unit XLR type)
o1/4 X 1/2 inches (Mic head)
Mass Approx. 4.3 oz (with power supply unit)
Approx. 121.5 g (with power supply unit)
Notes
Note *[1] 0 dB = 1 V/Pa, at 1 kHz
*[2] Output impedance at 1 kHz
*[3] A-weighted, 1 kHz, 1 Pa.
*[4] 0dB SPL = 20? Pa.
*[5] dB SPL/1E-7 T, 0 dB SPL = 20? Pa.
*[6] Wind noise at 2m/s (0 dB SPL = 20?Pa.)
*[7] 0 dB SPL = 20? Pa.
*[8] The values for dimensions are approximate.

Hands free microphone – As a lapel microphone, the ECM-77B is an alternative to the traditional hand held microphone and being hands free it allows the presenter to concentrate on her/his performance
Two-way powering system – AA-size battery or external power supply.
High-performance frequency response – 40-20,000 Hz.
Easy and familiar operation – The popularity of the microphone in TV production means that most sound people will be familiar with using the ECM-77.