Astell&Kern AK120II High Resolution Dual DAC Music Player (Silver) Body Material: Aluminum Display: 3.31inch WVGA (480 x 800) AMOLED Touchscreen Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF Sample rate: FLAC, WAV, ALAC, AIFF: 8kHz - 192kHz (8/16/24bits per Sample)/ DSD: DSD64 (1bit 2.8MHz), Stereo / DSD128 (1bit 5.6MHz), Stereo Output Level: Unbalance 2.1Vrms / Balance 2.3Vrms (Condition No Load)