Pen digital Voice Recorder Crystal recording Recording time: Long-time recording ACT format. Drive free USB function Pen digital Voice Recorder* Crystal recording.*Sleek design,Pen-looking appearance,metal housing.*MP3 play player,can be used as a USB flash disk.*Support Muti-audio,MP3,WMA,ASF,WAV music mode.*USB data transmission*Mini size,light weight, Easy to carry,be able to write.*Power ...