... Audio performance MP3, WMA (V7—9.1), MPEG1/2,WAV, MKA, LPCM, ADPCM, AAC OGG, DOLBY AC3, DTS, RA-lossless, FLAC ... , APE, SRS Especially for 24BIT /192K, APE, FLAC 3: Picture JPEG, BMP, ... key, while order the product, we can free support 2: another one option, can connect ... the file. POWER –-Power on/off key AUDIO –-change the audio channel PAUSE –-pause key RIGHT –right ...