ONN W6 Professional Bluetooth Mp3 Player 8gb Sky-blue Bluetooth Function, you can play the music through Bluetooth speaker or Bluetooth headset. Built-in lithium battery 450mah, Rechargeable Battery Get up to 60 hours?of music playback, recording up to 100 hours on a single charge with RKnano chip,perfect sound quality ,It has various playing modes,8 GB memory capacity,supports up to 32 GB Micro SD Card lossless acoustics; support multiple music formats: MP3, WMA, WMA, OGG, APE, FLAC, WAV, AAC-LC. Multifunctional: video display, FM radio, Stopwatch, E-book,time, Voice recorder.