This was tested, I was able to record a message and listen to the playback. You will need 2 AAA batteries to operate the recorder. This does not come with batteries. I have erased previous messages. Clean and ready to go. Comes with clip stand.

WEIGHT (INCLUDING BATTERIES): Approx. 77g

BUILT-IN MEMORY: 2GB

CHANNEL: Stereo/Mono

DIMENSION (W X H X D): Approx. 31.3 x 130.0 x 15.4mm

MIC-IN JACK:Yes

MESSAGES/FOLDERS" 340/1012 (999 messages in 1 folder)

BATTERY TYPE: 2 x NiMH AAA Rechargeable Battery

EARPHONE JACK: Yes

PC CONNECTIVITY: Yes