Williams Sound
Williams Sound HED 040 Adult Hearing Protector Headphones
200 Hz - 6kHz
Protect Your Hearing While Enjoying Clear AudioThe Williams Sound HED 040 Adult Size Hearing Protector Headphones offer both hearing protection and clear audio for various applications. Recommended for use with PPA R37, PPA R38 FM receivers and WIR RX 22-4 IR receivers. Recommended for PPA R37, ...
$284.20*
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*Price sourced from Amazon.com. Last updated:Aug 29, 2026.Price and availability are subject to change — details.
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Overview
Protect Your Hearing While Enjoying Clear Audio
The Williams Sound HED 040 Adult Size Hearing Protector Headphones offer both hearing protection and clear audio for various applications. Recommended for use with PPA R37, PPA R38 FM receivers and WIR RX 22-4 IR receivers.
- Recommended for PPA R37, PPA R38 FM receivers and WIR RX 22-4 IR receiver
- 3.5mm stereo plug
- 39" cord length
- 32 ohms
Key Features
Recommended for PPA R37, PPA R38 FM receivers and WIR RX 22-4 IR receiver. (Not compatible with PPA R35-8 receiver)
Mild and low gain hearing loss rating
Compatible with receivers that have stereo jacks only
3.5mm stereo plug, 39" cord length, 32 ohms
Freq. Response 200 Hz - 6kHz, Noise Reduction Rating 24dB
Specifications
Brand
Williams Sound
Model
HED 040
Compatibility
PPA R37, PPA R38 FM receivers and WIR RX 22-4 IR receiver
Incompatibility
PPA R35-8 receiver
Hearing Loss Rating
Mild and low gain
Plug Type
3.5mm stereo
Cord Length
39 inches
Impedance
32 ohms
Frequency Response
200 Hz - 6kHz
Noise Reduction Rating
24dB
Frequently Asked Questions
Are these Williams Sound HED 040 headphones specifically designed for people with hearing impairments?
Yes, these headphones are recommended for individuals with mild and low gain hearing loss, suggesting they are optimized for assistive listening applications.
Can I use these HED 040 headphones for listening to music on my smartphone?
While they have a 3.5mm stereo plug, the narrow frequency response (200 Hz - 6kHz) is tailored for voice, meaning they may not provide optimal sound quality for music playback.
What is the significance of the 24dB Noise Reduction Rating (NRR) for these headphones?
A 24dB NRR indicates that the headphones can reduce ambient noise levels by 24 decibels, helping users focus on the audio content in noisy environments.
Do these headphones work with any receiver that has a 3.5mm stereo jack?
They are compatible with receivers that have stereo jacks, but specific models like the PPA R35-8 are explicitly listed as incompatible, so checking your receiver model is important.
Is the cord on the Williams Sound HED 040 headphones detachable or replaceable?
The features state a "39" cord length," but do not specify if the cord is detachable or designed to be user-replaceable.
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