ECM-166BC (ECM166BC)Discontinued

Uni-directional lavalier Electret condenser microphone


Black coloured uni-directional electret condenser lavalier microphone supplied with a Sony 4-pin connector (SMC9-4P), for use with the WRT-8B/822B Sony bodypack transmitter.
  • Resistant to howling by rejecting indirect sound
  • Reasonably priced lavalier microphone ideal for institutional use and sound-contracting applications such as speeches, lectures and conferences


Audio Section
Capsule Type
Electret Condenser
Frequency Response
100 Hz to 10 kHz
Sensitivity *[1]
-45 dB (5.6 mV) ±3 dB
Output Impedance *[2]
2.5kΩ±30%, Unbalanced
Dynamic Range
96 dB or more
Signal-to-Noise Ratio *[3]
60 dB or more
Inherent Noise *[4]
34 dB SPL or less
Maximum Input Sound Pressure Level *[5]
130 dB SPL
General Section
BC type. Supplied with Sony 4-pin (SMC9-4P) connector
Mic Cable
3.9 feet
1.2 m
Power Requirements
DC 1.1 V to 10.0V
Power Consumption
0.4 mA or less
Dimensions *[6]
φ12.7 X 23.8 mm (Mic head)
φ1/2 X 15/16 inches (Mic head)
Approx. 28.3 g
Approx. 1 oz
Supplied Accessories
Urethane type windscreen (1)
Single/horisontal type tie clip (1)
Operating instructions (1)
*[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] 0 dB SPL = 20? Pa.
*[6] The values for dimensions are approximate.

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