Headset micr with TRRS 3.5 mm plug for Digi-Wave DLT 400 transceiver

Ideal Use Cases

The Williams AV MIC 144 is a single-muff headset microphone designed for the Digi-Wave DLT 400 transceiver. It combines the listening and speaking functions described in the supplied data in one connected headset, with an earphone, a boom-mounted microphone, and a 3.5 mm TRRS plug. It is a targeted choice for DLT 400 communication setups where users need clear communication through a headset identified for the transceiver. The documented application is the DLT 400; compatibility with other transceivers, phones, computers, or audio devices is not stated and should not be assumed.

Why Choose This Model

The headset uses an electret condenser microphone element specified as noise cancelling, paired with a gooseneck boom. This combination provides a defined microphone technology and boom configuration rather than an unspecified inline microphone. The single-muff format integrates one earphone into the same assembly. Its connector is equally specific: a 3.5 mm TRRS plug with black plastic housing and strain relief. These details make selection straightforward for an existing DLT 400 system because the headset format, microphone element, boom style, connector type, and compatible transceiver are all identified in the source data.

Installation and Integration

Installation and integration are centered on the headset’s 3.5 mm TRRS connection. Connect the plug to the DLT 400 transceiver, position the single-muff earphone, and set the gooseneck boom so the microphone is suitably located for speech. The black plastic plug housing and strain relief are part of the documented connector assembly. No adapters, software steps, configuration options, mounting parts, or extra accessories are listed in the available product data. Buyers planning a larger system should confirm any unlisted requirements separately. The provided Williams AV specification sheet for MIC 144 serves as the dedicated technical reference supplied for this model.

Performance Highlights

The microphone’s published sensitivity is 62 +/- 4 dBv/µbars at 1 kHz at 1/4 inch. Its signal-to-noise ratio is more than 60 dB at 1 kHz. The supplied frequency-response field is listed as 100 kHz–10 kHz; this listing reproduces the source value as provided rather than altering or interpreting it. For the earphone, sensitivity is 105 dB SPL typical at 1 kHz with 1 mW on a flat plate coupler. Earphone impedance is 32 ohms typical at 1 kHz. Together with the noise-cancelling electret condenser element, these published values provide concrete microphone and earphone performance references for system planning and product comparison.

What Makes It Different

What separates the MIC 144 is the way its documented components align around one named system. It is not presented merely as a headset with a common-size plug; it is described as integrating with the DLT 400 transceiver and specifically uses a TRRS connection. The noise-cancelling electret element, single-muff earphone, gooseneck boom, and strain-relieved connector establish its functional configuration. Connector format and named system compatibility are both important product-selection details. The source explicitly identifies 3.5 mm TRRS and the DLT 400, giving buyers two clear selection points without relying on unsupported cross-compatibility claims.

Final Assessment

The Williams AV MIC 144 is a focused headset microphone for users selecting an accessory for the DLT 400 transceiver. Its strongest case is specificity: a single-muff design, noise-cancelling electret condenser microphone, gooseneck boom, 32-ohm typical earphone impedance, and 3.5 mm TRRS plug are all documented. Published microphone and earphone sensitivity figures, along with the microphone signal-to-noise ratio, add useful technical context. Choose this model when those stated characteristics match the intended DLT 400 setup. Warranty, package contents, physical dimensions, weight, and broader device compatibility are not supplied in the source data, so no claims are made for those areas.