AGPtEK A06S 16GB Bluetooth 4.0 MP3 Lossless Sound Music Player, 50 Hours Playback & Supports up to 64GB(Color Blue) Play music through Bluetooth speaker or Bluetooth headset. Only work with Bluetooth 3.0 or above. Folder play via Bluetooth (playlist is not supported via Bluetooth). 50 hours battery life & Fast charge (10 minutes charge Lasts for hours). Entry Level Hi-Fi. Best Sound Quality for small size. Easy 'Drag & Drop' Audio Music File Management. Supports MP3, WMA, Flac, Ape; Built in 16GB memory capacity, supports up to 64 GB Micro SD Card for 4000 Songs! (Not included. Please use AGPtek or Kingston memory card to avoid compatibility problem.) Bluetooth mode support folder list playback and doesn't support Playlist. (AUX mode does). Bluetooth mode is compatible with Cars of 0000 PIN code, not with random PIN. Perfect & Shuffle for Sport & Long Long Road Trip. Special Design Armband Available, Search "AGPtEK A06 Armband "