The 0.96- inch OLED screen of the xDuboo comes with a high contrast ratio that clearly shows all relevant information such as song number, song title, play order etc. The micro SD slot is able to hold up to 800 WAV songs, 1500 FLAC/APE songs or 6000 MP3 songs. The solid aluminium CNC casing gives the portable audio player a robust look and also makes the audio player extremely durable. Support multiple lossless music formats The xDuoo X2 player supports MP3, WMA, APE, FLAC, WAV and other mainstream audio formats. Clear OLED screen 0.96 inch OLED screen with high contrast ratio clearly shows relevant information, like Song number, Play order, EQ , etc. Micro SD slot Support Micro SD up to 32GB (not included), which can hold 800 WAV songs, 1500 FLAC/APE songs, or 6000 MP3 songs. 10 hours of continuous playback Built-in battery enables up to 10 hours of continuous run time. CNC aluminum case The xDuoo X2 comes in a solid aluminum case that gives it a robust look and makes it last longer. Tiny and portable It just measures 70.5 x 40.5 x 12.5 mm and weighs 50g. Easy to carry anywhere. Specifications Brand xDuoo Model X2 Interface 3.5mm audio jack, Micro SD Card Slot Optional Language   English, French, German, Indonesian, Japanese, Korean, Polish, Russian,Simplified Chinese, Thai, Traditional Chinese Memory Play Yes Waterproof No CPU Artek Extension Card Micro SD card (not included) Max Support Memory 32GB Screen Size 0.96 inch Audio Support APE, FLAC, MP3, WAV, WMA Product Weight 50g Product Size  70.5 x 40.5 x 12.5 mm Package Contents 1 x xDuoo X2 HiFi Music Player, 1 x Micro USB Cable, 1 x Manual