$522.00

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Omnidirectional electret condenser, 40Hz"20kHz range, compact 5.6mm head, 120dB SPL max, XLR output, 9.8ft cable, phantom or AA battery powered.



The Sony ECM-66B is a professional miniature cardioid lavalier microphone crafted for superior audio pickup in live performance, presentation, and broadcast scenarios. Known for its compact design and high audio fidelity, the ECM-66B excels in environments where clarity and discretion are essential. Its cardioid pickup pattern ensures targeted audio capture while minimizing background noise, making it a reliable choice for use in noisy environments or on stage.

This model includes an integrated power supply barrel and comes terminated with an XLR connector, supporting both internal battery power and 48V phantom power for maximum flexibility. With its small capsule (only 10.6 mm in diameter and 24.2 mm long), the ECM-66B can be easily concealed in clothing, making it ideal for interviews and theatrical use. It boasts an extended frequency response from 70 Hz to 14 kHz, high SPL handling (up to 130 dB), and a robust dynamic range of 101 dB or more, allowing it to accurately capture both subtle and powerful sound sources.

The ECM-66B is designed with the end user in mind. It features a 3-meter cable and includes multiple accessories such as windscreen, vertical and horizontal tie clips, and a carrying case for on-the-go convenience. Its cardioid pattern also helps to reduce feedback, a common issue in live sound applications. Whether you're equipping a presenter, a performer, or a corporate speaker, this lavalier microphone delivers clear, consistent sound with minimal fuss.
  • Miniature lapel microphone designed to be discreet and inconspicuous for on-camera use
  • Omni-directional pickup pattern captures sound from all directions for natural voice reproduction
  • Hands-free operation allows presenters to focus on performance without holding a mic
  • Dual powering options include a single AA battery or 48V phantom power for flexible use
  • Wide frequency response from 40 Hz to 20 kHz delivers clear and accurate audio
  • Popular in television production, making it familiar to most sound professionals
  • Supplied with an XLR connector for professional wired applications
  • Long 9.8-foot cable provides freedom of movement during recording
  • Comes with metal-mesh windscreen, tie clips (vertical, horizontal, and double), a case, and instructions
  • General Specifications
  • Model: Sony ECM-77B
  • Microphone Type: Electret condenser
  • Polar Pattern: Omni-directional
  • Application: Lavalier microphone for studio, ENG, and EFP use
  • Mounting: Tie clip (single vertical and horizontal types included, plus double clip)
  • Dimensions Mic Head: 5.6 mm diameter x 12.5 mm length
  • Dimensions Power Unit: 20 mm diameter x 133 mm length
  • Weight: 121.5 grams with power supply unit

  • Audio Specifications
  • Frequency Response: 40 Hz to 20 kHz
  • Sensitivity: -52.0 dB plus minus 2 dB
  • Output Impedance: 150 ohms plus minus 20 percent, balanced
  • Dynamic Range: 90 dB or more
  • Signal to Noise Ratio: 64 dB or more (A-weighted)
  • Inherent Noise: 30 dB SPL or less
  • Induction Noise from Magnetic Field: 5 dB SPL or less
  • Wind Noise (with windscreen): 40 dB SPL or less
  • Max Input SPL: 120 dB SPL

  • Connectivity
  • Connector Type: XLR-3-12C male (in power supply unit)
  • Cable Length: 3 meters

  • Power Requirements
  • Voltage: DC 1.5 V from AA battery or +48 V phantom power
  • Battery Type: LR6 AA size
  • Battery Operating Time: Approx 6000 hours
  • Power Consumption: 0.3 mA or less (internal), 2.0 mA or less (external)

  • Included Accessories
  • Metal mesh windscreen
  • Vertical tie clip
  • Horizontal tie clip
  • Double horizontal tie clip
  • Operating instructions
  • Microphone case

  • Optional Accessories
  • Wind screen pack
  • Vertical clip pack
  • Safety pin clip pack
  • Double horizontal clip pack
  • Single horizontal clip pack
  • ECM-77 accessory kit
  • Colored windscreen kit
  • Black windscreen for ECM-77
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