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ETM-009S (Full Kit) | DSLR Microphone, High Sensitivity Unidirectional, Mini Shotgun Type, 3-Pole (TRS)

The ETM-009S is a mini shotgun microphone designed to be mounted on various cold shoe mounts of camera rigs or stands. It simultaneously achieves both unidirectional characteristics and high-sensitivity performance, enabling clear sound pickup at an appropriate distance.



ETM-009S (Full Kit): Ultra High-Sensitivity Unidirectional Microphone


High Sensitivity

With an ultra-high sensitivity of -27dB, the ETM-009S prevents excessive loss of recording levels, ensuring clear audio capture even as the distance from the sound source increases.


Unidirectional

This microphone is highly sensitive to sound coming from the direction it is pointing, while significantly reducing pickup from the rear. This characteristic effectively minimizes interference from surrounding ambient noise, focusing on your target audio.


"Professional Audio Solution for On-Camera Use"


ETM-009S Includes:

  • 1 x ETM-009S Microphone

  • 1 x Cold Shoe Mount Adapter (for camera mounting)

  • 1 x 3-Pole Spiral Extension Cable

  • 1 x Furry Windscreen (for outdoor use)

  • 1 x Foam Windscreen

  • 1 x Premium Pouch


Technical Specifications

  • Type: Electret Condenser Microphone
  • Directivity: Unidirectional (Cardioid) 
  • Sensitivity: -27dB (1 kHz at 1Pa) 
  • Frequency Response: 60Hz – 18,000 Hz 
  • S/N Ratio: 70dB+
  • Connector: 3.5 mm 3-pole (TRS) stereo plug (gold-plated)
  • Dimensions / Weight: 24.0mm x Ø15mm / Approx. 10g
  • Power Supply: Plug-in power (No batteries required)



Compatibility Guide

  • Compatible Devices: The ETM-009S is compatible with all devices featuring a 3.5mm 3-pole (TRS) mic input. It works perfectly with DSLRs, mirrorless cameras, compact cameras, and digital voice recorders.

  • Action Cams: A great match for action cams and handheld cameras like GoPros and DJI Osmo Pocket (requires appropriate mic adapter).

  • Non-Compatible Devices: The ETM-009S will NOT work directly with iPhones, iPads, Macs, or other smartphones and tablets (which require a 4-pole TRRS connection).

“ETM-009S — Now Widely Adopted in Barrier-Free Kiosk Systems!”


1. Background & Proposal

The adoption of voice recognition–based barrier-free kiosks is rapidly expanding.


However, real-world installation environments—such as restaurants, cafés, hospitals, and public facilities—are inherently noisy.
This creates a structural limitation where speech is distorted at the input stage, regardless of the performance of the AI voice recognition engine.

As a result, the following issues continue to arise:

  1. Increased voice recognition errors
  2. User fatigue caused by repeated input attempts
  3. Reduced usability for elderly and vulnerable users
  4. Customer dissatisfaction and decline in service quality

To address these challenges, EDUTIGE, leveraging over 20 years of expertise in microphone design and acoustic engineering,
approaches the problem not through software, but at the hardware input stage.

By physically minimizing ambient noise and capturing clean voice signals before they reach the AI engine,
we significantly improve the quality of input data.

As a result, voice recognition accuracy can be improved by approximately 20–30%,
leading to fewer reattempts and enhanced customer satisfaction.

The ETM-009S high-sensitivity unidirectional microphone is specifically designed for this purpose, featuring:

  1. Focused front-direction voice pickup
  2. Minimization of ambient noise input
  3. Optimization for close-range voice capture

These design characteristics enable stable and accurate voice recognition
even in high-noise environments, making it an ideal solution for barrier-free kiosk systems.

“Noise Out. Voice In.”


2. Key Technical Features & Business Value

  • High-sensitivity unidirectional microphone
  • Superior noise rejection in loud environments
  • Optimized for close-distance voice interaction
  • Enhances AI voice recognition performance without software modification
  • Easy integration into existing kiosk systems

Business Value:

  • Improves voice recognition success rate
  • Reduces repeated user input
  • Enhances overall user experience
  • Increases operational efficiency
  • Strengthens brand reliability in accessibility compliance


3. Expected Benefits

  • Up to 20–30% improvement in voice recognition accuracy
  • Reduced customer frustration and input repetition
  • Improved accessibility for elderly and disabled users
  • Faster transaction and service processing
  • Higher customer satisfaction and retention