Verbatim Store 'n' Play VM-01 - Manual (Page 20)

 An Introduction to Basic Functions
Voice record
In voice mode, you can record voice via the built-in Mic
1) Press “Rec/A-B” button to begin recording
2) Press “Rec/A-B” button again to stop recording
3) Recorded files are stored as default files VXXX.WAV, XXX, begins with 001
Play record
Voice files recorded in the device can be played in voice mode. The
operation is identical to playing music files in music mode.