... 12-22 hours, Charging via power adapter or USB to computer systemAudioSupport MP3/WMA/WAV etc.RecordRecorder: ... /Classic/DBB,Earphone jack3.5mm,AccessibilityFrequency Response20Hz-20KHz,Sample Rate8 KHz,SNR>=85dB,Soundtrack Equalizer±3dBLanguagesLanguage support ... book, Heavy bass speakerIn the BoxColorful box, Player,Stereo earphone, USB cable, Charger, User Manual ( function(){ var aBigImageSrc = [ ...