Sony Voice Recorder ICDBX140

Specifications
- Record clear audio in versatile MP3 format
- Play back through a built-in 300mW speaker
- Maximum battery life of 45 hours (MP3 8kbps) or 30 hours (HVXC 2kbps)
- 4GB of memory lets you store up to 1043hrs (MP3 8kbps)
- Powered by 2x AAA batteries (included)