Mono Digital Voice Recorder.
The ICD-BX140 4GB MP3 Digital Voice IC Recorder from Sony allows you to record voice memos, interviews, presentations, and more as MP3 files. The recorder features 4GB of internal storage, as well as a built-in microphone for capturing your audio without the need for an external microphone. A 1/8" microphone input provides the option of using an optional external microphone if desired.
Highlights:
Records in MP3 Format.
4GB Internal Memory.
Built-In Microphone.
Built-In Speaker.
Up to 45 Hours Recording Battery Life.
Voice-Operated Recording.
Noise-Cut Function.
Includes 2 AAA Batteries.