The HipZip was an MP3 digital audio player that used the PocketZip technology to store music.

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The company today demonstrated a continued commitment to raising the bar in quality audio by expanding the line of digital audio products that offer this successful hybrid tube technology.

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It uses a technology called PurePath Digital to amplify the ones and zeros of an audio stream without having to convert it to analog (a process that can introduce noise).

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Not only is video performance absolutely superb -- easily beating the competition -- sound quality is another strong point thanks to Nokia's Rich Recording technology, which uses MEMS digital microphones and enables clear, distortion-free audio capture at levels up to 140-145dBs.

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"We are constantly striving to deliver the best possible customer experience for Cloud Player, and today we are offering our customers a significant set of new features, including scan and match technology and audio quality upgrade, " said Steve Boom, Vice President of Digital Music at Amazon.

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For high quality audio broadcasts, the two top models feature built-in HD Radio Technology, providing clear digital reception of HD Radio broadcasts from radio stations around the country.

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