Williams AV MIC 145 – Dual Headset Microphone, TRRS Plug

Product Overview

The Williams AV MIC 145 is a dual headset microphone with a TRRS 3.5mm plug, designed exclusively for use with the Williams AV Digi-Wave DLT 400 transceiver. The dual-ear design provides both microphone input and stereo audio monitoring, making it well-suited for interpreters and conference operators who require hands-free voice pickup and simultaneous audio monitoring in both ears. The noise-cancelling electret condenser capsule with gooseneck boom delivers clear speech pickup in professional AV environments.

Product Description

The MIC 145 is the dual-muff counterpart to the MIC 157 single-muff model, providing full bilateral audio monitoring for applications where both-ear coverage is required. Interpreters working in language interpretation booths, conference moderators, and AV operators who need consistent audio in both ears while transmitting will benefit from the MIC 145’s dual-ear form factor. The electret condenser noise-cancelling element provides more than 60 dB signal-to-noise ratio at 1 kHz and a frequency response of 100 Hz to 10 kHz, appropriate for voice intelligibility in interpretation and conference settings. The gooseneck boom positions the capsule consistently relative to the talker’s mouth. The TRRS 3.5mm plug connects directly to the DLT 400’s single TRRS connector, carrying both microphone and headset audio over one plug. Headset impedance of 32Ω (stereo) is matched to the DLT 400’s output stage. The MIC 145 is for use with the DLT 400 only—it is not compatible with FM or IR transmitters.

Key Features

• Dual Ear Muff Design — Full bilateral audio monitoring with independent left and right ear coverage for interpreters and conference operators.
• Noise-Cancelling Electret Condenser Capsule — Reduces pickup of ambient noise for cleaner transmitted speech in interpretation and conference environments.
• TRRS 3.5mm Plug — Single plug carries both microphone and stereo headset audio for the DLT 400 transceiver.
• Gooseneck Boom — Flexible boom positions the capsule consistently without requiring user adjustment during sessions.
• Over 60 dB SNR at 1 kHz — High signal-to-noise ratio for clean speech transmission in professional AV settings.
• 32Ω Stereo Impedance — Matched to the DLT 400 headset output for direct connection.
• DLT 400 Exclusive Compatibility — Designed and optimized for the Williams AV Digi-Wave DLT 400 transceiver.

Technical Specifications