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Sony ICD-PX333

4GB digital voice recorder with expandable memory

6 Reviews | 4 questions - 5 answers

Item # 158PX333

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Our take on the Sony ICD-PX333

The Sony ICD-PX333 digital voice recorder is handy for just about anyone. Use it to record classroom lectures, presentations, business meetings, even a quick reminder to yourself.  It's small enough to fit in your pocket, and has a large, easy-to-read LCD display.

The Sony ICD-PX333 digital voice recorder is handy for just about anyone. Use it to record classroom lectures, presentations, business meetings, even a quick reminder to yourself.  It's small enough to fit in your pocket, and has a large, easy-to-read LCD display.

Sony ICD-PX333 voice recorder

Expandable memory

With the ICD-PX333, you don't have to worry about running out of recording space. The recorder has 4GB of built-in memory. That's enough for 178 hours of basic-quality recordings, or 6 hours of CD-quality audio. But if you need more, just insert a microSD card into the player and keep recording.

Easy on-the-go recording

The ICD-PX333 features Scene Select to take the guesswork out of recording. Simply select what you want to record, such as lectures, music, or personal memos, and Scene Select automatically adjusts the recording levels for you. And the intelligent noise cut feature further improves recordings made under less-than-ideal circumstances. The voice-activated mode lets you make convenient, hands-free recordings.

Playback options

Use the built-in speaker for playback, or plug in your headphones for more discreet listening. The recorder can deliver up to 96 hours of operation with two “AAA” batteries (included).

Product Highlights:

  • battery-powered digital voice recorder with expandable memory
  • built-in mono microphone
  • 4GB embedded memory
  • records to MP3 audio files
  • built-in editing functions:
    • noise cut to reduce ambient sound during recording
    • bookmark sections of a track during recording or playback
    • add to or overwrite recording during playback
  • expandable microSD card slot (memory card not included)
  • LCD display
  • built-in speaker
  • Scene Select automatically sets levels based on activity (notes, music, lecture, etc.)
  • high-speed USB interface (cable included)
  • headphone minijack output
  • Sound Organizer audio editing software included
  • stereo minijack input for an optional external microphone
  • up to 96 hours of operation with 2 "AAA" batteries (included)
  • 1-1/2"W x 4-1/2"H x 7/8"D
  • weight: 2.625 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee
Computer Requirements:
  • Windows® 8, Windows® 7, Windows Vista® SP 2 or higher, Windows® XP SP3 or higher
  • Mac OS X v.10.3.9-v.10.8 (Sony software has limited Mac compatibility)

The recorder works great and the price was $15 less than the big box stores.

Dave, North Myrtle Beach, SC

What's in the Box:

  • IC recorder (black)
  • 23" USB cable (Type A USB on one end and Mini-B 2.0 USB on other end)
  • 2 "AAA" alkaline batteries
  • Quick Start Guide
  • Limited Warranty sheet
  • Online product registration sheet

Sony ICD-PX333 Reviews

Average Customer Review(s):

(6 Reviews)


Dave from North Myrtle Beach, SC on 3/26/2017

Crutchfield Customer Review (What's this?)

The recorder works great and the price was $15 less than the big box stores.

Pros: Compact size, easy upload, great voice recorder.

Cons: Can't think of one.

Easy Enough!

Kenneth from Pompano Beach, FL on 10/24/2016

Crutchfield Customer Review (What's this?)

Not bad! I was surprised how easy it is to use. Even my wife figured it out!

Pros: Easy to use.


Sony ICD-PX333

Anonymous from Bridgeton, NJ on 8/29/2016

Crutchfield Customer Review (What's this?)

Great over all. Easily fits into pants or shirt pockets. The speaker could be a little louder and the display could be a little darker/bolder. Well worth the money.



excellent Sony recorder

Tom from North Carolina on 8/9/2015

Crutchfield Customer Review (What's this?)

An excellent, very compact, very useful recorder.

Pros: Sensitive mic, very compact, voice activated, flexible use.

Cons: I can't think of one.

Demo Pro

Hank from North Carolina on 8/4/2015

Crutchfield Customer Review (What's this?)

I recorded step by step instructions by track number for visitors to view my house

Pros: Small, simple and easy

Cons: Speaker is not great

Sony ICD-PX333

Don U from Pottstown,Pa. on 6/25/2013

Crutchfield Customer Review (What's this?)

The IC recorder is a little too small for me to hold onto and I don't like using headphones, but I do like the features that it has. I actually give it a 41/2 rating.

Pros: I like the fact that you don't need any recording tapes and being able to connect it to your computer to save your messages or any other types of recording.

Cons: I didn't realize that the unit didn't come with a carrying case which I think it should be part of the package, it probably would help handling the unit because of how small it is and also too small for a large man's Hand.


Hands-on research

Product Research

General Features
Recording Features
Edit and Playback Functions

General Features

Overview: The Sony ICD-PX333 is a simple-to-use, hand-held portable digital voice recorder. It has a built-in 4 GB flash memory for hours of recording time. It has a built-in mono microphone, mono speaker, and jacks for an external microphone and headphones. The PX333 operates on two "AAA" batteries (supplied).

LCD Display: The PX333 features a 15/16" x 1-1/8" monochrome LCD display which indicates recording and playback information. The recorder will display the elapsed or remaining recording time in hours, minutes, and seconds. When not recording, the current time can be displayed.

Date and Time: The recorder features a built-in clock. If you have set the time and date, information as to when a sound file was recorded is stored automatically with that file. In addition, you can set an alarm and start playback of a selected file at a specified time.

Built-in Microphone: The unit features a built-in monaural microphone on the top of the recorder. You can set the microphone sensitivity to High or Low. In addition to the built-in microphone, the recorder also has a 3.5mm external microphone input. Stereo recording is possible when using an external microphone.

Built-In 4 GB Flash Memory: The PX333 Digital Voice Recorder features a built-in 4 GB flash memory which can hold hours of audio or voice memos. The unit has 5 pre-programmed folders (400 maximum), and up to 199 files per folder (or a maximum of 4074 files). Because a portion of the memory is used for system management and/or application files, available capacity is approximately 3.6 GB.

Memory Card Slot: In addition to the 4 GB built-in memory, the PX333 has a memory card expansion slot for more recording capacity. The slot will accept microSD and M2 (Memory Stick micro) memory cards.

USB Port: The PX333 has a Mini-B 2.0 USB port to let you transfer files quickly and easily. A USB cable is supplied. The unit is Hi-speed USB compatible, and can work with the following Operating Systems:

  • Windows 8
  • Windows 7 SP1 or higher
  • Windows Vista SP2 or higher
  • Windows XP SP3 or higher
  • Mac OS X (v10.3.9-v10.8)

Sound Organizer: The unit features built-in Sound Organizer editing software. When you connect the recorder, you can install the software on your computer. Sound Organizer is compatible with Windows XP (SP3), Vista (SP2), Windows 7, and Windows 8.

Power Requirements: The recorder is powered by two "AAA" batteries. Two alkaline batteries are supplied. You can also use Nickel-Metal Hydride (Ni-MH) rechargeable batteries as well. See the chart below for battery life information.

Recording Features

Recording Format: The ICD-PX333 records audio files in MP3 format in four recording modes at bit rates of 8 kbps to 192 kbps. Lower bit rates provide longer recording times while higher bit rates offer better quality recordings. The selectable recording modes are as follows:

Recording Mode Recording Bit Rate/Sampling Frequency Frequency Response Maximum Recording Time
Built-in 4 GB Memory
Max. Battery Life
SHQ: Super High Quality 192 kbps
75Hz - 20kHz 44 hrs 40 min 65 hours
HQ: High Quality 128 kbps
75Hz - 17kHz 67 hrs 5 min 65 hours
SP: Standard Play 48 kbps
75Hz - 14kHz 178 hours 72 hours
LP: Long Play 8 kbps
100Hz - 3500Hz 1073 hours 96 hours

VOR Function: The VOR (Voice-Operated Recording) function makes the digital voice recorder start recording when the recorder detects sound, and pause when no sound is heard, eliminate recording during soundless periods.

Intelligent Noise Cut: Sony's Intelligent Noise Cut feature significantly reduces ambient noise during recording for clearer playback.

Scene Select: You can select a pre-determined recording mode with the push of the Scene Select button. You can choose from Meeting, Voice Notes, Interview, Lecture, and Audio In, to optimize the recording settings for each type of scene.

Edit and Playback Functions

Overwrite and Add Functions: The ICD-PX333 allows you to correct dictation in playback and add a recording after the original recording. Added recording will be placed after the current file, and will be counted as a part of the file.

Divide: In the stop mode, you can divide a file into two parts, with the new file number being added to the newer part of the divided file.

Erase: You can erase your recorded messages one by one, or all messages in a folder at one time.

Track Mark: You can place up to 98 track marks for each file to assist you in finding an exact spot in your recording.

Protect Files: To prevent a file from being accidentally erased or edited, you can protect an important file. When a file is protected, it is regarded as a read-only file. Protection can be released, if desired.

Built-In Speaker and Headphones: The PX333 features a built-in, 1-1/8" diameter speaker for listening back to your recordings. The recorder also features a 3.5mm headphone output.

Easy Search: You can go forward for approximately 10 seconds or back for approximately 3 seconds to locate a desired point in a long recording.

A-B Repeat: You can place marks at the beginning and the ending of a recorded passage for repeated playback. This constant repetition feature can be used for language learning.

Hold Function: The PX333 has a Hold function that will lock the buttons to prevent accidental operations. The Hold function is activated by sliding the power switch to the left.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

replace old recorder [ joe  Apr 30, 2016 ]

4 questions already asked

Not certain if it will work with Windows, but it definitely works with IOS. Look for the product manual on line or call Crutchfields direct for a definitive answer. [ deborah  Apr 18, 2017 ]
Yes it creates a wav file and you can save it as several different formats like mp3. mp4. [ David  Apr 15, 2017 ]
Yes, that would work with a stereo minijack cable and a proper output level (volume) setting on the iPhone. I hope that helps. My Bio: [ Ryan  Nov 09, 2016 ]  Staff
By selecting Sony's Intelligent Noise Cut feature, you can significantly reduce ambient noise during recording for clearer playback and editing. [ Larry  Jan 03, 2016 ]  Staff
The only display is a sound bar that does not have numbers but just bars. Hope this helps [ JOANNA L  Jan 30, 2014 ]