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The successor to the hugely successful PXC 250 is here—the brand-new Sennheiser PXC 250-II no noise headphones improves upon the previous model making it our best value yet. The mark II on-ear, collapsible mini headphones are equipped with NoiseGard™ technology to cancel droning, fatiguing airplane, or bus cabin noise. They are also equipped with a convenient in-line volume control which enables you to adjust playback volume even when the music player is stowed. The PXC 250-II headphones are foldable and also function as normal headphones without NoiseGard activated. A single AAA battery provides up to 50 hours of NoiseGard performance. An extensive set of accessories – in-flight audio adapter, carrying case, and AAA battery – completes the package. Highly portable, the Sennheiser PXC 250 II noise cancelling headphones allow you to take off and then lose yourself completely when flying. Sennheiser PXC 250 II Thanks to high-performing neodymium magnets, the PXC 250-II delivers a powerful, detailed sound with a wide frequency response, plus it’s equipped with NoiseGard to screen out intrusive ambient noise. NoiseGard technology cancels up to 80 percent of droning, fatiguing airplane or bus cabin noise without added bulk or size. They are also equipped with a convenient in-line volume control which enables you to adjust playback volume even when the music player is stowed. They offer a closed, supra-aural design that provides for excellent passive attenuation of ambient noise. The newly-improved battery pack requires only a single AAA alkaline battery, and it lasts up to 50 hours–more than enough for a flight from Tokyo to New York (even taking delays into account). Suitable for all types of modern music, it provides detailed sound reproduction with a slight emphasis on the bass. Other features include a steel-reinforced headband for high durability and included carrying case. PXC 250-II headphones, AAA battery, in-flight audio adapter (dual 1/8 inch/3.5mm mono plug), carrying pouch Sennheiser PXC 250 Specifications * Noise cancelling: Up to 80 percent * Frequency response: 10-21,000 Hz * Sound pressure level (SPL): 112 dB * Ear coupling: On-the-ear * Impedance: 300/160 ohms (active/passive) * Total harmonic distortion (THD): <0.1 percent * Connector: 1/8-inch (3.5mm) * Cable length: 4.9 feet * Power: Single AAA battery * Operating time: Up to 50 hours Optimized for in-flight entertainment systems as well as MP3, iPod, iPhone (iPod and iPhone are trademarks of Apple Inc. registered in the U.S. and other countries) and portable media players. Teddy have been writing articles for years. You can also check out his latest website on NOISE CANCELING HEADPHONES. which contains the Bose QuietComfort 15 Headphone Review
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