Sony 4GB MP3 Digital Voice Recorder


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In the box

Sony 4GB MP3 Digital Voice Recorder

  • Sony 4GB MP3 Digital Voice Recorder
  • 2x AAA Dry Batteries
  • Quick Start Guide

From The Wavelength Blog Read more

Sony 4GB MP3 Digital Voice Recorder

The ICD-BX140 delivers simplicity and capability, making this a remarkably easy to use and accurate voice recorder. It features  extra-long recording time, add and overwrite functions for corrections and additions to your recordings, and digital pitch control for powerful playback and recording capability in the palm of your hand. Great for doctors taking diction, keeping a voice journal, or anytime you need record the conversation clearly and accurately. 

Built-in 4 GB Memory

4 GB of available internal flash memory provides ample space for recording. With 4,175 hours of recording space you'll have space for all things important.

Mono Microphone

The built in microphone allows you to easily capture all thoughts, dictations and other details in great clarity. An external microphone can be connected if neccessary

Automatic Record Level

The Automatic Record Level will automatically adjust the recording level to give you optimum results.

Noise Cut

Noise Cut reduces ambient noise during recording for clearer speech playback. 

Low Cut

When activated, the Low Cut filter helps reduce the effect of wind noise in your recordings, so that they're clear and static free

Digital Pitch Control

Digital Pitch Control enables the recording to be played at a faster or slower rate without changing the recording’s pitch. This will keep the quality while allowing you to analyze.


Did you forget a thought or mis-speak? With Add/Overwrite capability, adding to or overwriting recordings during playback is quick and easy. 

Alarm Playback

Set a future date and time and the recording will automatically be played. 

Size and Weight

  • Dimensions (w X H X D): 4.54 X 1.52 X 0.84 In
  • Weight: 2.54 Oz

General Features

  • Built-in Memory: 4 Gb
  • Built-in Microphone: Monaural
  • Recording Format: Hvxc/mp3
  • Playback Format: Hvxc/mp3
  • Maximum Number Of File: 495
  • Maximum Number Of Files In One Folder: 99
  • Battery Type (provided): Dry Battery (alkaline, Size Aaa)


  • Low-cut Filter: Yes
  • Add/overwrite Recording: Yes
  • Vor: Yes
  • Recording Monitor: Yes
  • Max. Recording Time Mp3 8 Kbps (monaural): 1043 Hrs 0 Min
  • Max. Recording Time Mp3 128 Kbps - 65 Hrs 10 Min
  • Max. Recording Time Mp3 192 Kbps - 43 Hrs 25 Min
  • Battery Life For Recording Hvxc 2 Kbps (monaural): 30 Hrs
  • Battery Life For Recording Mp3 8 Kbps (monaural): 45 Hrs
  • Battery Life For Recording Mp3 128 Kbps: 28 Hrs
  • Battery Life For Recording Mp3 192 Kbps: 26 Hrs
  • Frequency Response Hvxc 2 Kbps (monaural): 100–3,000 Hz
  • Frequency Response Mp3 8 Kbps (monaural): 75–3,000 Hz
  • Frequency Response Mp3 128 Kbps: 75–15,000 Hz
  • Frequency Response Mp3 192 Kbps: 75–15,000 Hz

Playback and Edit 

  • Digital Pitch Control (speed Control): Yes
  • Noise Cut: Yes
  • Easy Search: Yes
  • Alarm Playback: Yes
  • Erase: Yes
  • Protect: Yes
  • Divide: Yes
  • Move File: Yes


  • Headphone Output(s): 1 (Minijack, Stereo)
  • Microphone Input: 1 (Minijack, Stereo)

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