ETM-009M (Mic Only): Balanced-Sensitivity Unidirectional Microphone

Balanced Sensitivity & Perfect Balance The ETM-009M is engineered with mid-range sensitivity optimized for standard kiosk and mobile environments. It strikes the perfect balance between input level and ambient noise rejection, ensuring uniform voice capture without signal clipping or over-amplification.

Unidirectional Featuring a precise cardioid pickup pattern, this microphone selectively focuses on the speaker's voice in front of the unit while physically rejecting peripheral noise and background chatter. It is the ideal plug-and-play front-end solution for voice user interfaces (VUI).

"Versatile & Balanced" "The standard audio solution for everyday business and mobile environments"

ETM-009M (Mic Only) Includes:

• 1 x ETM-009M Microphone

• 1 x Foam Windscreen

Technical Specifications

• Type: Electret Condenser Microphone

• Directivity: Unidirectional (Cardioid)

• Sensitivity: -31dB (1 kHz at 1Pa): tuned for 30cm – 50cm distance

• Frequency Response: 60Hz – 18,000 Hz 

• S/N Ratio: 73dB+ (High SNR calibrated for balanced hardware noise reduction)

• Connector: 3.5 mm 4-pole (TRRS) stereo plug (gold-plated)

• Dimensions / Weight: 24.0mm x Ø15mm / Approx. 6.5g

• Power Supply: Plug-in power (No batteries required)

Compatibility Guide

• Target Setup: Perfect for standard indoor kiosks, general retail ordering systems, and mobile setups where the user maintains a steady, moderate distance (30–50cm) from the device.

• Compatible Devices: The ETM-009M is natively compatible with smartphones, tablets, and laptops equipped with a 3.5mm 4-pole (TRRS) CTIA jack.

• Modern Smartphones / Tablets: For premium smart devices without a 3.5mm headphone jack, it connects seamlessly using a USB-C audio adapter like the EDUTIGE E3U-001.

• Non-Compatible Devices: The ETM-009M will NOT work directly with standard DSLRs, mirrorless cameras, or digital voice recorders (which require a 3-pole TRS connection),