... time:about six hours 3.MP3 player mp3 pencharacteristics1, digital Recorder2, MP3 player3, flash drive4, Wirte pen, lead replaceable5, listen to ... used to operate recording, play the tape, MP3 function.A pen is on a dedicated tricolor luminous indicators used ... people, students, documents such as his ideal of the record, entertainment tool (electronic records, written records, music entertainment ...