... 1600mAh rechargeable lithium-polymer batteryCharging via power adapter or USB to computer systemAudioSupport MP3, AMR, AMR, APE, FLAC, WAV and AAC ... ,SMD,SMC,BIN and SWF etc.LanguagesLanguage support for Chinese (Simplified), Chinese (Traditional), English, Japanese, Korean, French, German, Italian, Dutch, Portuguese, Spanish, Russian ...