Sony NW-ZX2BLK 128 GB Walkman Hi-Res Digital Music Player (Certified Refurbished) 128GB Walkman Hi-Res Audio Digital Music Player Compatible with: DSD, WAV, FLAC, AIFF, ALAC, MP3, WMA and more Enjoy up to 60-hours MP3, and 33-hours Hi-Res playback on a single charge Bluetooth with LDAC Hi-Fidelity wireless music streaming