Sub-Miniature Omni-Directional Lavalier Microphone

The Sony ECM-90 Electret Condenser Microphone is an ultra-compact, dual-diaphragm omnidirectional microphone capsule.

The ECM-90 has a flat-and-wide frequency response of 20 Hz to 20 kHz, a dual-diaphragm mechanism that reduces the cable noise and a splash-proof design built to withstand every-day use.

The ECM-90 is available with two different connectors

ECM-90BC comes with a Sony 4-pin (SMC9-4P) connector

ECM-90LM comes with a 3-pin Lemo connector

ECM-90

Capsule Type	Electret Condenser
Frequency Response	20 Hz to 20 kHz
Directivity	Omni-directional
Sensitivity *[1]	BC Type. －38 dB (12.6mV) LM Type. 40 dB (10mV)
Output Impedance *[2]	BV Type. 2.5 kΩ (unbalanced) LM Type. 6.3 kΩ (unbalanced)
Dynamic Range (typ.)	99 dB
Signal-to-Noise Ratio (typ.) *[3]	68 dB
Inherent Noise (typ.) *[4	26 dB SPL
Wind Noise *[5]	45 dB SPL or less (with supplied windscreen)
Maximum Input Sound Pressure Level (typ.) *[6]	125 dB SPL
Connector	BC type. Supplied with Sony 4-pin (SMC9-4P) connector LM Type. 3-pin Lemo connector
Mic Cable	BC Type. 3.9 feet/1.2 m LM Type. 5.2 feet 1.6m
Power Requirements	BC Type. DC 1.1 V to 10.0 V LM Type. Supplied from Sony wireless system transmitters
Dimensions *[7]	5/32 x 5/32 x 21/26 inches (Mic head) 3.5 x 3.5 x 20.5 mm (Mic head)
Mass (microphone body, excluding cable)	Approx. 0.035oz Approx. 1g
Supplied Accessories	Urethane type windscreen (1) Single/vertical type tie clip (1) Single/horisontal type tie clip (1) Operating instructions (1)
Optional Accessories	Wind screen pack Vertical clip pack Safety clip pack Horizontal clip pack Double clip pack Color windscreen pack Black windscreen pack Accessory kit