16GB Digital Voice Live Listening Recorder
 
Features:
 
Allows you to hear what is being recorded in real time
High quality recording-equipped with dual sensitive microphones 
High capacity in battery and memory - 650mAh rechargeable battery, up to 45 hours continuous recording. 
16Gb flash memory could save over 1100 hours recording files.  In addition to this supports up to 32GB memory SD card 
Variable Play Speed -16 levels to adjust the play speed.