Sony NW-WM1Z Premium Walkman
Premium sound quality: With this flagship Sony portable audio player, exceptional sound starts with high-quality materials. The Sony NW-WM1Z Premium Walkman features a gold-plated oxygen-free copper chassis and hand-crafted internal wiring to enhance performance. The player's advanced digital-to-analog converter decodes high-res files in their native resolution. You'll enjoy richly detailed, spacious, better-than-CD sound. (You can download high-res tunes from sites like HDtracks ). Great for both high- and low-resolution files.