Built-in lithium battery 450mah?? Rechargeable Battery Get up to 10 hours of music playback?? recording up to 100 hours on a single charge with</br>Bluetooth Function?? you can play the music through Bluetooth speaker or Bluetooth headset</br>RKnano chip??perfect sound quality ??It has various playing modes??8 GB memory capacity??supports up to 16 GB Micro SD Card</br>Lossless acoustics; support multiple music formats: MP3?? WMA?? WMA?? OGG?? APE?? FLAC?? WAV?? AAC-LC.</br>support FM Radio/pedometer/time display</br></br>Product Description</br></br>Pretty MP3 player?? with aluminum alloy shell. Shakeproof ?? Dustproof??More color ??60 HOURS Continuous Playback ??Bluetooth mp3 Connecting a Bluetooth headset support?? Bluetooth stereo Product dimension: 95x 40 x 8.9 mm?? N.W:35g?? G.W: 120g. Colored 260000?? 1.8 inch TFT screen?? Resolution: 128*160px Product description: 1.With RKnano chip??perfect sound quality.It has various playing modes such as single?? order?? circulation?? memory play?? and ra