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Noisebuster Electronic Noise Canceling Safety Earmuff | |
|  | Quantity in Basket:
none Code: NBPA4000
Price:$144.95
Shipping Weight: 5.10 pounds
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| Noisebuster Noise Canceling Safety Earmuff - PA4000
Superior passive hearing protection
The most advanced electronic noise cancellation ("ENC") technology
A new innovation in safety protection, the NoiseBuster® Electronic Noise Canceling
Safety Earmuff combines superior passive hearing protection with the most advanced
electronic noise cancellation ("ENC") technology. These industrial grade noise canceling headphones provide
electronic hearing protection that allow your to hear speech more clearly while blocking unwanted noise. The Noisebuster
noise canceling earmuffs are a must have product if you are operating farm equipment, lawn equipment, power tools or attending motor sports events.
The Noisebuster noise canceling safety earmuff is an excellent headphone choice for do-it-yourself users of
lawnmowers and power tools,
as well as for motor sports fans. Audio interface allows use with scanners, you can also
listen to your portable audio player while wearing your NoiseBuster ENC Earmuff.
The NoiseBuster ENC Earmuff is specifically designed for the industrial worker.
The product delivers up to 20dB of ENC and has a passive Noise Reduction Rating (NRR) of 26dB (over-the-head).
Get the highest-performing hearing protector available -- at an unbelievably low price!
| Noisebuster Noise Canceling Safety Earmuff - PA4000 Benefits |
| Hearing protection: |
Experience noise reduction across the full range of frequencies |
| Safety: |
Critical speech communications are heard more clearly |
| Usability: |
Listen to music or radio communications at lower, less damaging volumes |
| Wearability: |
Over-the-head style |
| Durability: |
Tough earmuff and headband |
| Accessories and Replacement Parts: |
Ear cushions, carry case, battery door assembly |
| Comfort: |
Soft, pliable cushions and adjustable headband |
| Noisebuster Noise Canceling Safety Earmuff - PA4000 Includes |
| NoiseBuster safety earmuff |
| Durable carry case (13.5" x 9" x 4.3") |
| Over-the-head strap |
| AA battery |
| 3.5 mm audio interface cable jack |
| Noisebuster Noise Canceling Safety Earmuff - PA4000 Features |
| On/off switch and power indicator |
| Stereo input 3.5 mm audio jack |
| Up to 65 hours of use on a single AA battery |
| Adjustable headband |
| Resistant to water and moisture, contaminants, mechanical shock and vibration |
| Warranty - 6 months |
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What is Electronic Noise Cancellation (ENC)?
A NoiseBuster ENC Earmuff uses a microphone inside the ear cup (1) to listen to noise coming into the ear (2).
Using electronics (3), the system takes that information and uses it to create a noise wave that is identical
to, but directly opposite of, the one coming into the ear. The "anti-noise" wave is output through a speaker (4),
also located in the ear cup. When the two waves (the noise wave and the anti-noise wave) meet,
the noise is significantly reduced (5).
ENC Protection
ENC is the most effective defense against low frequency noise.
Low frequency noise consists of powerful sound waves that can travel great distances and cannot be
absorbed by conventional passive materials. Noises generated by engines, fans, motors and other similar
devices are typically dominated by low frequencies--frequencies that cannot be stopped by passive earmuffs.
In addition to the detrimental effect it has on hearing, low-frequency noise creates another,
perhaps even more serious effect. Because low-frequency noise masks speech, it is difficult for a person
to hear and comprehend speech and warning signals when exposed to such noise.
Passive Protection
The passive component of the NoiseBuster ENC Earmuff provides superior
attenuation of mid- and high-frequency noise.
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Noisebuster Noise Canceling Safety Earmuff - PA4000 Electronic and Passive Noise Cancellation Specifications
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| ENC performance range: |
Between 20Hz and 800Hz |
| ENC attenuation: |
20dB between 100 - 200Hz, 0dB crossover at 20Hz and 800Hz |
| Passive attenuation: |
NRR 26dB / CSA Class A (over-the-head) |
| Storage temperature: |
-40C to +85C |
| Operating temperature: |
0C to +55C |
| Audio cable length: |
50cm (20 inches) |
| Product weight: |
17 oz (with battery installed) |
| Power: |
one AA battery |

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| 2006 National Hardware Show
Editor's Choice Awards for the Noisebuster PA4000 Electronic Noise Canceling Earmuff. Now, instead of just muffling the sound,
Noise Busters earmuffs use electronic
circuitry to cancel the harmful sound.
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