Hearing protection is a serious matter. If you work (or play) in a loud environment and habitually fail to protect your ears, study after study shows you'll most likely develop hearing loss, and possibly ringing in your ears, at some point in your life. Whether you're working in a factory, using power tools, or participate in other ridiculously loud activities, you need to protect your eardrums. And wouldn't it be nice to listen to your MP3 player—at a normal volume—at the same time? Priced competitively at $149, the NoiseBuster PA4000 is an earmuff-style headset with active noise cancelling electronics and fairly decent playback, compatible with most MP3 players, portable radios, or anything else with 3.5mm headphone jacks.
One of the problems with listening to audio in loud environments is that you tend to have to crank the volume to hear your tunes or talk radio over the noise around you—leading you to blast your poor eardrums not only with ambient noise but also with your own electronics. The NoiseBuster promises to get rid of the background sound so you can hear your music (or whatever) at a normal volume.
Like all earmuff-style hearing protection, the NoiseBuster PA4000 is big. The oval-shaped cans (the muffs, so to speak) measure 4 1/2" high by 3" wide, big enough to cover most human-sized ears. Because they contain speakers and noise-cancelling technology, they're bulkier than passive noise resistant earmuffs.
They offer a very tight fit (a necessity for this type of equipment), with soft faux-leather pads pressing against your head. The head strap is covered in a similar faux-leather, and it's adjustable to fit heads of any size. One of the cans contains an on/off switch, a 3.5mm jack (with a rubber cover for when it's not in use), a battery compartment for a single AA battery, and a red LED to indicate when they're switched on.
Fitted properly, the NoiseBuster headset is surprisingly comfortable. You'll immediately notice that you can barely hear anything once you put it on, as it employs a great deal of insulation for passive noise cancelling. Once you switch the unit on, the active noise cancelation kicks in and you can barely even hear people talking in a normal tone of voice. I'm wearing them as I type this, and I can hardly hear anything in my basement office save for faint clicks of the keyboard. Computer fans, the dehumidifier, the furnace—all imperceptible.
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