Features:
- Noise reduction from 40 to 1,500 Hz
- Features XBS (extra-bass system)
- Run for up to 50 hours on included AAA battery
- Gold-plated minijack resists corrosion
Description:
Panasonic's RP-HC50 dynamic earbud headphones are equipped with powerful noise-cancelation technology, making them an ideal companion for in-flight (or even on-bus) music lovers. Their noise reduction is effective over a range from 40 to 1,500 Hz, covering the part of the audible spectrum where human ears are most sensitive to sound. Microphones located in each earpiece detect any non-musical, steady-state (essentially constant) environmental noise. This information is read and analyzed by a device that generates an inverse noise wave that is out of phase with the noise itself. By feeding this new noise back into the headset, the noise itself is audibly canceled, since the sum of the two waves, ideally, is zero. This eliminates a good deal of unwanted sonic junk, from airplane engine noise to distant freeway traffic seeping into your living room. You get two levels of noise cancelation (approximately 5 dB and 10 dB of noise attenuation, respectively), depending on the degree of noise around you. Less attenuation conserves batteries but also reduces the effect of the cancelation on the low frequencies of your chosen program material--which, thanks to the headphones' XBS (extra-bass system design) is minimal to begin with. The headphones operate for about 50 hours on a single AAA battery (supplied) and come with a handy slider to prevent slack ear cords getting tangled during use and a clothing clip to simplify operation. The RP-HC50's gold-plated .125-inch minijack connector is ultra-resistant to corrosion and other signal-degrading artifacts. What's in the Box
Headphones, inline noise-cancelation box, 1 AAA battery, a cord clip, and a user's manual
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