SonySony NW;ZX2BLK 128 GB Walkman Hi;Res Digital Music Player (Open Box) Enjoy the subtlest nuances of studio;quality sound in higher than CD quality with High;Resolution Audio. Passion for music unites e ... morevery component from signal to speaker so it feels like the artist is performing right in front of you. Supreme sound, made mobileThe NW;ZX2 is an exercise in quality. Enjoy High;Resolution Audio to its fullest, optimized through S;Master; HX technology. Even compressed audio files are upscaled closer to High;Resolution Audio with DSEE HX; for a rich studio sound. And with over 33 hours' playback, you can keep the music coming anywhere you goHigh;Resolution Audio perfected by SonyThe richness and musical fidelity of High;Resolution Audio has gone mobile. Through technologies developed by Sony, you'll hear what you've been missing. Enjoy jaw;dropping sound qualityLike going from standard definition to HD video, High;Resolution Audio tracks are far higher quality than MP3s and even CDs, letting you hear every breath, every drumbeat, every note. Even better, the S;Master HX; all;digital amplifier reduces potential distortion, ensuring you always get the full listening experience recorded in the studio. Your favorite songs, upgradedIn addition to playing studio;quality High;Resolution Audio, the NW;ZX2 Walkman; also improves the sound of all your existing music. DSEE HX; restores lost detail to MP3s and other compressed music files, giving you back the full experience of the original recording, whether you listen to Dvorak or electronic music.