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 random mode 2. Button: Volume, MENU, Play/Pause, Previous, Next, On/off 3.Interfaces:3.5mm earphone jack, High-speed USB 2.0 slot 4.Ultra low power consumption - Rechargeable Battery Get up to 10 hours of music playback, recording up to 100 hours on a single charge with the integrated rechargeable Li-Poly battery Built-in lithium battery 450mah. 5.Audio Formats:MP3, WMA, APE, FLAC, WAV,AAC.Video Player - Watch your favourite videos in AVI format ,FM Digital Radio - Store up to 30 preset stations 6. Main menu: music, video, picture, radio, record, ebook, game, source explorer, setting 7. E-Book viewer - with bookmarking function .Micro SD Card slot - expand memory by up to 16GB,Multi-language,english,chinese, total 21 kinds of language 8. Power supply:Input AC 100~240V,50~60HZ, Output DC 5V/300mA. also may acquire power from computer or power bank 9.Full set: MP3 player*1, Mini USB cable*1, 3.5mm earphone*1, English user manual*1</br><br/>http://www.amazon.com/gp/product/B012MCSWH6