Noisebuster Electronic Noise Canceling Safety Earmuffs

$138.95

By Pro Tech Technologies
Sku: A18615 01 - Part #: PA4000PA4000
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The Noisebuster Electronic Noise Canceling Safety Earmuffs protect your ears from the harmful noises of heavy machinery, auto racing, power tools and more with state of the art noise reduction technology. Designed with comfort and convenience in mind, these NoiseBuster earmuffs combine active noise reduction with the ability to hear music from your portable devices.

The Noisebuster PA4000 Safety Earmuffs are ideal for the industrial worker, do-it-yourself homeowner, and the motorsports fan. These earmuffs have a passive noise reduction rating of 26 decibels and, thanks to the electronic noise cancelling system inside, they have an active noise reduction rating of 20 decibels. The passive materials protect from medium and high frequency noises while the ANR system protects you from the damaging low frequency noises conventional earmuffs just cant handle.

In addition to their noise reduction capabilities, the Noise Buster PA4000 have an audio input jack and a 3.5mm audio interface cable so you can listen to your favorite portable music device. Now you can listen to the radio, MP3 players, communication devices and more while simultaneously protecting your ears from the dangers of low frequency noise.

Noisebuster PA4000 Headphones Features:

Active Noise Reduction system protects your ears from dangerous low frequency noise
Passive Noise Reduction features help to block out medium and high frequency noise
Audio input jack to use in conjunction with portable listening device
Great for racing fans (can be used with a scanner!)
Superior sound quality thanks to reduced interference
Reduces distortion by eliminating the need to play music at a high volume
Lightweight yet durable design ideal for work environment
Noisebuster ear defenders feature a behind-the-ear model
This behind-the-ear model is perfect for construction workers or anyone who wears a hard hat!

Noisebuster NB FX Noise Canceling Headphones Specifications:

Noise Reduction Rating: 26 dB
Low Frequency Noise Reduction: 20 dB
Audio cable length: 20”
Audio cable type: 3.5mm stereo
Resistant To: Water and moisture, contaminants, mechanical shock, and vibration
Carry Case (sold separately): Hard Shell Case no longer available.

What is low frequency noise?

Low frequency noise is made up of powerful sound waves that travel great distances and cannot be absorbed by passive materials. Engines, fans, motors, and similar devices generate noise that is typically dominated by low frequencies which cannot be stopped by regular earmuffs. ANR, or Active Noise Reduction, is the only proven defense against the effects of low frequency noise.

How do the Noise Cancelling Ear Muffs work?

The Noisebuster Electronic Noise Canceling Safety Earmuffs use a small microphone inside the ear cup to listen to noise going into the ear. Using the integrated electronic system, the earmuffs turn that information into a sound wave, and then create a sound wave directly opposite to that one. The new sound wave is played through a speaker in the ear cup and, when the two waves meet, the low-frequency sound is significantly reduced.

With this technology, you not only have superior protection for your ears, but incredible sound quality from your portable music device without outside interference. You no longer have to turn the volume up to dangerous levels to hear your music, and you will not have to deal with the distortion that comes from music at high volumes. Motor sports fans can use this product in conjunction with a scanner to protect their ears from the sounds of passing cars while still hearing what is going on in the race. The Noisebuster Electronic Noise Canceling Safety Earmuffs are constructed of a tough ABS plastic with a metal headband and include the audio cable and a "AA" battery.

What is Electronic Noise Cancellation (ENC)?

ENC uses a microphone inside the earcup to listen to noise coming into the ear. Using electronics, the system creates a noise wave that is a mirror image of the one coming into the ear. This "anti-noise" wave is played through a speaker, also located in the ear cup and when the offensive noise meets its mirror image, the noise is canceled.

Warranty Info: 6 month warranty against manufacturers defects. This does not include the battery. Warranty is void if product has been misused, abused, damaged, modified in any way, or repaired by an unauthorized facility.

Returns: All returns subject to ActiveForever’s return policy and a 20% reprocessing fee . Please call Customer Service for a RMA (Return Merchandise Authorization) Number. Unauthorized returns will not be accepted.

Related Searches: 768235286001, SECC, plugs, buds, protectors, soundproof, PA4200, 4100, 4200, 4000

Customer Reviews

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100%

Wow! I love these things. I have military grade shooters headphones and these are much more effective at cutting out the noise. I use them mainly for mowing the lawn and watching fireworks and must say they do a better job at cutting out the noise than anything I have used to date. I showed them to friends and gave them the opportunity to compare them to my other headphones. They liked them also. I assume you have had a few orders as a result,
1/9/2013 7:28 AM

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100%

I searched for an active noise cancelling earmuff with MP3 player input to replace my now failed noise cancelling Sony earbuds/Peltor earmuf combination that always cause ear pain after long use. The Noisebuster muffs are just what I needed, very comfortable for extended wear, good MP3 sound reproduction and great acitve noise cancelling. I primarily use while mowing, string trimming, and leaf blowing since the engine noise gets to me and I enjoy music while I work. The ear and headband cushions are super soft and comfortable and noise cancelling is as good as you will find in an active muff. Just remember that no active noise cancelling is perfect, they all have difficultly with higher frequencies, but out of the 4 noise cancelling systems I've used, this is at the top.
1/9/2013 7:28 AM

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80%

product was exactly as describe and of good quality. purchasing and delivery were trouble-free. i am completely satisfied.
1/9/2013 7:28 AM

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80%

Noisebuster pa4000

I have owned a set of noisebuster pa4000 for about a year.  They are a great product for city commuting on noisy trains & buses.
I modified mine a bit as follows:
1) I replaced the rather thin foam ear pads with double roll Gel ones (try Peltor HY80 or Conflos) and just attach & clamp overnight with GE Silicone II sealant.  The gel seals are close enough in outside shape to fit, and provide a bit more passive noise protection.
2) I cut some plastic strips from a coffee tub, and glued it both inside and outside the "scuba rubber" battery cover, to thicken it and to cover a couple of weak (sound transmitting) areas near each end of it.
3) I cut some soft 1mm thick felt (one red for "right" and one blue) and put it in the ear pockets to better cover the speakers.

Performance wise, these Muffs excel at cutting down "baritone roar" around 80 - 160 Hz.  This is quite effective when sitting at the back of a city bus near the roar of the diesel engine.  The actual noise reduction around 125 Hz is probably somewhere between the minus 17 dB of the passive shell and the purported extra minus 20 dB of the active cancellation.  In other words, not actually minus 37 dB, but rather, something more logarithmic summing the two systems - it sounds like around minus 28 dB.
My passive Peltor Ultimate 10 (a rated -30 dB muff) is rated at -21 dB at 125 Hz.  The pa4000 noisebusters are subjectively far quieter than the Peltors at 125 Hz (diesel "roar etc.), so hence they seem to be around minus 28 more or less.  They don't sound to be blocking too well (active) at 350 Hz - the approximate noisy midrange bark of computerized voice announcements on trains and buses.  My guess is that despite the 20-800 Hz NR circuit, this circuit does nearly all of its blocking between 100 and 200 Hz - which the manual confirms.  The passive Peltor ultimate 10's are slightly quieter around 350-500 Hz, and the train announcements are less cutting.  Their noise chart has them down around -29 at 375 Hz, so, the pa4000 must be a tad less blocking that this.

You CAN listen to your music VERY softly (eg. non-beat ambient music), with these on, so, they are definitely amazing at saving your hearing.  People complain about the NC robbing some bass in music - I just use a preset on my Cowon i9 called "BBE Mach Bass" and the low end comes up nicely and the audio flattens out nice.  Fidelity is quite fine, and the main goal is less noise, so that's a huge ear-saving victory.

Future models would benefit from these changes:
1) Broaden the active cancelling circuit upwards an octave (to 1600 Hz), increase its NR from -20 dB to about -24dB, and keep it thus up through 500 Hz (to but down annoying train announcements & other harsh midrange noise).
2) Beef up the ear pads to a double roll Gel.
3)Thicken the battery door (as I did) and go over any other weak spots where sound can get in & over-engineer them.
4)Thicken the overall earmuff shell, or better still - use a discrete and full inner shell with inner & outer separated by dense foam. The inner shell could even be mass-loaded-vinyl (as long as people could tolerate more weight).
5)Make the audio plug a little tighter so that mp3 player cables don't fall out so easily.
6) PLEASE BUILD AN RF FILTER INTO THE NC CIRCUIT!!  Countless times, on a busy train, every time someone near me starts texting or sending email on a phone or other device, the pa4000 beeps wildly.

For ultimate quiet, right now, I sometimes use the pa4000 over top of westone UM2's with deep comply P-100 tips.  The westones wires are tiny and well sealed by the Gel ear seals I used.  The plug-active muff combo can get you a lot of minus 31 down low, and lots of -36 and -41 dB a little higher up.  You run the pa4000 NC "on", but only to create quiet just in front of your ears.  The music can come from a canal phone like the westones.

I'll keep using mine, but hope the company can make some changes as above.  It would be unbeatable if so.
4/14/2013 1:50 PM

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