Sony NWZX100HNSM Hi-Res Walkman Digital Music Player with Noise Cancelation 128GB Hi-Res Walkman Portable Music Player with Digital Noise Cancelation, Compatible with a wide variety of file formats, including: DSD, WAV, FLAC, AIFF, ALAC, MP3, WMA and more Includes Noise-canceling earbuds, Bluetooth with LDAC Hi-Fidelity wireless music streaming, Longest battery of any Walkman. Enjoy up to 70 hours of music playback microSD memory card expansion slot for added storage capacity, 24-bit, 192kHz high-resolution audio, Engineered for Sound: S-Master HX full digital amp for unparalleled, delicate, and dynamic sound DSEE HX upscales audio (MP3, AAC, ATRAC, and WMA) to near Hi-Res quality