This lightweight Walkman offers up to 50 hours of MP3 playback with a fully charged battery, and the Drag & Drop feature lets you transfer your music collection in the blink of an eye. With easy-to-use controls, you can quickly find the right song, view photos, and turn on the radio. Music in excellent sound quality at the touch of a button thanks to Clear Audio+. Available with 4, 8 or 16 GB storage capacity. Easy Drag & Drop transfer from PC and Mac. Playback of PCM, AAC, WMA and MP3 files. 35 hours operating time in battery mode.