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