Hearing-protector dual-muff headphone

The Williams AV HED 040 combines adult-size, dual ear-muff hearing-protector coverage with stereo headphone operation. Its published 24 dB noise reduction rating, 32-ohm nominal impedance, and 200 Hz–6 kHz frequency response define a specialized listening product for users who need both audio playback and noise reduction. A 3.5 mm stereo plug, 39-inch cord, and 0.85 lb (387 g) product weight complete the documented configuration.

Ideal Use Cases

This model is suited to listening situations where a conventional stereo headphone connection must be paired with the coverage of a dual ear-muff hearing protector. The adult-size format is intended for adult wearers, while the published rating for mild and low-gain hearing loss helps identify its stated hearing profile. Its 24 dB noise reduction rating makes it relevant when external sound reduction is an important part of the equipment selection. Because no specific receiver models are identified, buyers should confirm connection and impedance requirements for their intended audio equipment.

Why Choose This Model

The HED 040 brings its key functions together in one unit: stereo listening and a hearing-protector ear-muff format. This avoids treating the audio connection and hearing-protector requirement as separate product categories. The technical profile is clearly defined, including a 32-ohm nominal impedance, 200 Hz–6 kHz frequency response, and 3.5 mm stereo plug. These published values make it possible to assess the headphone against the output and connector specifications of an existing receiver or audio source before purchase.

Installation and Integration

Integration is based on the attached 3.5 mm stereo plug. Connect the headphone to equipment that provides a matching 3.5 mm stereo headphone receptacle and supports headphones with a 32-ohm nominal impedance. The 39-inch cord establishes the available distance between the wearer and the connected device, so equipment placement should account for that cord length. The adult-size ear-muff format should also be considered when assigning the product to a specific wearer. No wireless connection, adapter, alternate plug, or specific compatible receiver is documented in the supplied product information.

Performance Highlights

The published frequency response extends from 200 Hz to 6 kHz. This stated range should be considered alongside the intended listening material and the output characteristics of the connected source. Stereo operation is supported through the stereo headphone configuration and 3.5 mm stereo plug. Nominal impedance is rated at 32 ohms, providing a concrete electrical value for compatibility checks. The 24 dB noise reduction rating describes the hearing-protector portion of the product, while the listed mild and low-gain hearing loss rating identifies its documented hearing-use classification. Product weight is 0.85 lb, or 387 g.

What Makes It Different

The defining feature of the HED 040 is the combination of dual ear-muff hearing-protector construction and wired stereo headphone functionality. Rather than presenting noise reduction as an unspecified benefit, the product carries a stated 24 dB noise reduction rating. It also provides the essential audio specifications needed for system planning: 32-ohm nominal impedance, 200 Hz–6 kHz frequency response, a 3.5 mm stereo plug, and a 39-inch cord. The adult-size designation further clarifies the intended fit category.

Final Assessment

The Williams AV HED 040 is a purpose-specific choice for adult users seeking wired stereo listening in a dual ear-muff hearing-protector format. Its value is grounded in a documented 24 dB noise reduction rating and a straightforward wired audio profile. Before selection, verify that the intended source has a 3.5 mm stereo connection, supports a 32-ohm headphone load, and can be positioned within the 39-inch cord length. These checks provide the clearest basis for a suitable integration.