Sony ICD-UX523/S Stereo IC Digital Voice Recorder — main product image

Sony ICD-UX523/S Stereo IC Digital Voice Recorder

Sony

Sony ICD-UX523/S Stereo IC Digital Voice Recorder

Name: Sony ICD-UX523/S Stereo IC Digital Voice Recorder
Brand: Sony
SKU: ICD-UX523/S

★★★★★3.9 (102 reviews)

Pocket-sized stereo voice recorder with 4GB internal memory for clear capture of lectures, meetings, and notes.

$190.19*

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Sony ICD-UX523 is a slim, portable stereo IC recorder designed for people who need a reliable way to capture spoken audio throughout the day. Whether you're recording a university lecture, a business meeting, or quick personal reminders, the device's built-in stereo microphones deliver clearer, more spatially accurate audio than basic mono recorders. With 4GB of onboard memory, it provides a reasonable amount of recording time right out of the box without the need to purchase or manage memory cards.

Finished in silver, the ICD-UX523 is designed for one-handed operation with intuitive controls that let you start, stop, and navigate recordings quickly. The built-in USB connector simplifies file transfer — just slide it out and plug directly into a computer without hunting for a cable. As an older model in Sony's IC recorder lineup, it focuses on core recording functionality rather than advanced features like Wi-Fi or app connectivity. It is a practical, affordable choice for anyone who values simplicity and portability in a voice recording device.

Specifications

Brand

Sony

Model

ICD-UX523/S

Internal Memory

4GB

Recording Format

Stereo IC

Color

Silver

Pros & Cons

👍 Pros

Compact, lightweight design fits easily in a pocket or bag
4GB of built-in memory requires no additional media cards to start recording
Stereo recording captures a fuller, more natural sound than mono recorders
Simple, user-friendly controls make it accessible for non-technical users

👎 Cons

4GB of internal storage is limited compared to recorders with expandable memory card slots
Older model with fewer advanced features found on newer Sony recorders
Limited product description does not confirm the availability of an external microphone jack
Does not specify supported file export formats, which may affect compatibility with editing software

Frequently Asked Questions

How many hours of audio can the 4GB internal memory hold?

Recording time depends on the quality setting. At lower bitrates the ICD-UX523 can store many hours of audio, while higher-quality stereo settings reduce total capacity. Sony's IC recorders typically offer selectable quality modes to balance fidelity and recording time.

Does the ICD-UX523 have a built-in USB connector for file transfer?

Sony's UX-series recorders in this generation feature a retractable USB connector that slides out from the body, allowing direct connection to a computer without a separate cable.

What audio formats does this recorder use?

The ICD-UX523 records in stereo IC format. Playback and transfer to a computer allow you to access and manage your recordings easily.

Is there a microphone input or speaker built in?

Yes, the ICD-UX523 has built-in stereo microphones for recording and a built-in speaker for on-device playback, making it fully self-contained.

Can this recorder be used to record phone calls or line-in audio?

The recorder is primarily designed for ambient voice capture via its built-in microphones. Check Sony's specifications for whether it supports an external microphone or line-in jack for other recording scenarios.