... mp3 pencharacteristics1, digital Recorder2, MP3 player3, flash drive4, Wirte pen, lead replaceable5, listen to FM radio6, is the business office ... functions.Should the entire product length as same only ball-point pen.A pen is on four function keys, be used to operate ... lead.A Voice recorder enclosure for metal shell, the pen is black antiskid rubber grip section, already beautiful practical. ...