Sony Professional ECM-77LM, Miniature Omni-directional electret condenser microphone

• Capsule Type: Electret Condenser
• Frequency Response: 40 Hz to 20 kHz
• Directivity: Omni-directional
• Sensitivity *[1] [7]: -39.0 dB
• Output Impedance *[2] [7]: 6.3k Ω ± 30%, Unbalanced
• Dynamic Range: 95 dB or more
• Signal-to-Noise Ratio *[3]: 64dB (typ.)
• Inherent Noise *[4]: 32 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]: 127 dB SPL

General Section

• Connector: Small 3-pin connector
• Mic Cable: 5.25 feet, 1.6 m
• Power Requirements: DC 3.0 V to 10.0V
• Power Consumption: 0.4 mA or less
• Dimensions *[8]: φ5.6 X 12.5 mm (Mic head), φ1/4 X 1/2 inches (Mic head)
• Mass: Approx. 1.5 g (without cable), Approx. 0.053 oz (without cable)
• Supplied Accessories: Single/horizontal type tie clip (1), Metal-mesh type windscreen (1)
• Optional Accessories: Windscreen pack, Vertical clip pack, Safety pin type clip pack, Horizontal double-clip pack, Horizontal single-clip pack, ECM-77 accessory kit, Coloured windscreen kit, Black windscreen for ECM-77

Notes

• *[1] 0 dB = 1 V/Pa, at 1 kHz
• *[2] Output impedance at 1 kHz
• *[3] IEC 179,A-weighted, 1 kHz, 1 Pa.
• *[4] 0dB = 20 μPa
• *[5] dB SPL/1E-7 T
• *[6] Wind noise at 2m/s (0 dB SPL = 20 μPa)
• *[7] Vdd：5.5V, RL：8.2kΩ
• *[8] The values for dimensions are approximate.