The Smallest and Lightest High-Res Audio Player. Enjoy the subtlest nuances of studio-quality sound with High-Resolution Audio. Passion for music unites every component from signal to speaker, while advanced technologies such as digital upscaling help create the ultimate listening experience. Like 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. So buy this Sony NWZ-A15 16GB High-Resolution Walkman® - The Smallest and Lightest High-Res Audio Player Now £159.00.