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
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.
Two-way powering system
AA-size battery or external phantom power
High-performance frequency response
40-20,000 Hz
| Capsule Type |
Electret Condenser |
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| Frequency Response |
40 Hz to 20 kHz |
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| Directivity |
Omni-directional |
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| Sensitivity *[1] |
-52.0 dB ±2 dB |
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| Output Impedance *[2] |
150Ω±20%, Balanced |
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| Dynamic Range |
90 dB or more |
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| Signal-to-Noise Ratio *[3] |
64 dB or more |
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| Inherent Noise *[4] |
30 dB SPL or less |
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| Induction Noise From External Magnetic Field *[5] |
5 dB SPL or less |
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| Wind Noise *[6] |
40 dB SPL or less (with windscreen) |
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| Maximum Input Sound Pressure Level *[7] |
120 dB SPL |
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| Connector |
B type. Supplied with XLR-3-12C (male) connector in power supply unit (single AA size battery) |
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| Mic Cable |
9.8 feet |
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3 m |
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| Power Requirements |
DC 1.5 V (AA size battery) or +48 V phantom power |
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| Battery Operating Time |
Approx. 6000 h (LR6) |
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| Power Consumption |
Internal battery: 0.3 mA or less |
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External battery: 2 mA or less |
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| Dimensions *[8] |
o5.6 X 12.5 mm (Mic head) |
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o20 X 133 mm (Power unit XLR type) |
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o13/16 X 5 1/4 inches (Power unit XLR type) |
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o1/4 X 1/2 inches (Mic head) |
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| Mass |
Approx. 4.3 oz (with power supply unit) |
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Approx. 121.5 g (with power supply unit) |
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| Note |
*[1] 0 dB = 1 V/Pa, at 1 kHz |
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*[2] Output impedance at 1 kHz |
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*[3] A-weighted, 1 kHz, 1 Pa. |
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*[4] 0dB SPL = 20? Pa. |
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*[5] dB SPL/1E-7 T, 0 dB SPL = 20? Pa. |
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*[6] Wind noise at 2m/s (0 dB SPL = 20?Pa.) |
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*[7] 0 dB SPL = 20? Pa. |
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*[8] The values for dimensions are approximate. |
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