Heavy-duty dual-muff headset mic for Digi-Wave DLT 400 transceiver

The Williams AV MIC 168 is a heavy-duty, dual-muff headset microphone designed for use with the Digi-Wave DLT 400 transceiver. Its black headset construction combines a unidirectional electret microphone with soft leatherette ear cushions and a specified 20 dB Noise Reduction Rating. The headset weighs 0.75 lb (340 g) and has a 39-inch cable for connection to the transceiver.

Ideal Use Cases

The MIC 168 is intended for communication systems built around the Digi-Wave DLT 400. Its dual-muff format is suited to users who need both headset coverage and an integrated microphone while operating the transceiver. The 20 dB Noise Reduction Rating provides a documented level of noise attenuation, while the unidirectional pickup pattern focuses the microphone on sound arriving from its primary direction. These characteristics make the model appropriate when clear communication and a defined noise-reduction specification are priorities.

Why Choose This Model

This headset brings together a heavy-duty design, a dual-muff configuration, and detailed microphone performance specifications. The electret element has a listed impedance of 1 kΩ and operates with a 2–10 VDC bias. Sensitivity is rated at 42 ± 3 dB at 1 kHz, referenced to 0 dB equals 1 V/Pa. Soft leatherette ear cushions provide the specified contact surface around the ears, and the black finish gives the headset a consistent, understated appearance.

The MIC 168 is also supplied with an ADP 016 y-splitter, providing the included adapter identified in the technical specifications. Its 90-day warranty and CE and RoHS compliance are clearly documented.

Installation and Integration

The MIC 168 is designed to integrate with the Digi-Wave DLT 400 transceiver through its 3.5 mm connection arrangement. The technical specifications identify 3.5 mm stereo TRS plugs and state that the ADP 016 y-splitter is included. The supplied product overview also references a TRRS 3.5 mm plug. The 39-inch cable provides the documented cable length between the headset and connected equipment.

Integration consists of connecting the headset through the applicable 3.5 mm plug arrangement and using the included y-splitter where required by the DLT 400 configuration. No additional mounting hardware or installation components are identified in the supplied product information.

Performance Highlights

The microphone covers a listed frequency response of 20 Hz to 20 kHz. Its unidirectional polar pattern provides directional pickup, while the electret element supplies the microphone’s specified transducer design. Electrical characteristics include 1 kΩ impedance, 2–10 VDC bias, and sensitivity of 42 ± 3 dB at 1 kHz with a 1 V/Pa reference.

For the headset portion, the 20 dB Noise Reduction Rating is the central documented performance figure. Dual muffs and soft leatherette ear cushions complete the physical listening configuration. At 0.75 lb, or 340 g, the headset has a clearly stated weight for planning, storage, and equipment allocation.

What Makes It Different

The MIC 168 combines DLT 400 compatibility with a dual-muff headset layout and an integrated unidirectional electret microphone. Unlike a microphone-only accessory, this model provides the physical headset format, specified noise-reduction rating, ear cushions, cable, and connection components in one product. The included ADP 016 y-splitter is particularly notable because it is supplied with the headset rather than listed as a separate required component.

Its documented approvals also distinguish the configuration: the MIC 168 is CE approved and RoHS compliant. The accompanying specification sheet provides the manufacturer’s technical reference for the model.

Final Assessment

The Williams AV MIC 168 is a focused accessory for Digi-Wave DLT 400 users who need a heavy-duty, dual-muff headset microphone. Its most important specifications are the unidirectional electret element, 20 Hz–20 kHz frequency response, 20 dB Noise Reduction Rating, soft leatherette cushions, 39-inch cable, and included ADP 016 y-splitter. A black finish, 340 g weight, documented compliance, and 90-day warranty complete the supplied product profile.