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USR-350 / MQ-U350 Voice Activated Audio Recording device Software, Videos, and Quick Start Guide Manual

Best spy audio recorder

USR-350 / MQ-U350 Quick Start Guide

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1) How to Charge the Battery:

  • Connect the audio recorder to a PC or 5v USB power supply (optional accessory)
  • About 2 hours to fully charge
    • A flashing light = Fully charged
    • Solid light = Charging

2) How to Record an Audio File

• On top of the device is a toggle wheel with a notch in the middle
• Underneath the toggle wheel on the side of recorder with USB & MQ-U350 written on it are two hard to see symbols (-) & (..)
• The notch on the toggle wheel can be turned towards either of these symbols
• If the notch is in the middle position then the device is OFF
• If the notch is turned towards the (-) symbol the device is in Continuous Recording mode
• If the notch is turned towards the (..) symbol the device is in Voice Activated recording mode
• When finished recording slide notch to the middle position to end the recording and turn off the device
• Wait 5 seconds before making another recording
• NOTE: If the device runs out of power during the recording, it will finalize and save the file before the battery dies

3) How to Playback files on a PC:

  1. First, make sure that the recorder is turned off. **the computer will not recognize the device if it is on**
  2. Remove the plastic cap on the end of the recorder and connect to the USB port of the computer.
  3. When connected to the PC the device will be a removable drive named “MEMOQ” (some computers name it something else). That will be found in “This PC” (windows 10) which can be found in the “file Explorer” (usually looks like a yellow folder on the task bar). You can also find “this PC” by doing a search on your computer for “this PC” (on Widows 7 you would search for “my computer”). Now double click on the removable drive named “MEMOQ”.
  4. Open “VOICE” folder
  5. Now right click over the file that you want to play – hover over “open with” and choose the “Windows Media Player”(will not play on “Groove Music”) or whichever media player that you choose. You can download a free VLC Media Player here (recommended)

    On a MAC you can play files just like you would any other audio file. Some versions of iTunes will not play MP3 files. You can use Quick Time or download a VLC Media Player. You can download one for free here

With most Android phones you can listen to the audio files using an “OTG” cable and/or adapter (included, but you may need and additional adapter depending on your phone model). Simply connect the recorder to your phone using an “OTG” cable or adapter (not included). Some phones will open the “File Manager” automatically (this could take a few moments). On other phones you may need to find the files manually. Please see your phone operating instructions if you are having difficulties.

4) How to Delete the files on a PC:

• Open the VOICE folder
• Right click on the file you wish to delete and select Delete in the pop up menu
• Files can only be deleted through a PC

5) How to Delete the files on a Mac

• Open the VOICE folder
• Right click on the file you wish to delete and select Delete in the pop up menu.
• While the device is still plugged into the Mac go to your trash folder and empty trash.

Note: If the above step is not completed the files will not be fully deleted from the device and you will have a phantom folder that will contain the deleted files that can only be seen by a Windows Computer.

6) How to set Time/Date stamp, Recording Quality and Voice Activation Sensitivity:

  • Connect the device to the computer as in section 3 – 1, 2, and 3 above.
  • Next double click the “Time Setup” file.
  • If you see a pop-up window, click “Yes”.
  • Next choose your desired record quality and SVOS (voice activation) levels
  • When choosing voice activation settings “0” is normal “+1” is more sensitive and “+2” is the most sensitive. Likewise, “-1 is less sensitive and “-2” is the least sensitive (will take more sound to start recording).
  • When choosing record quality “XHQ” is the best quality but cuts the storage capacity in half.
  • Last click the “Start” button.
  • NOTE: Anytime that you change any of the above settings you must click the “Start “button to save.
  • NOTE: Date and time setup software is only compatible with a Windows based PC. MAC users will need to use a windows PC for initial time and date setup. After doing so the date and time will be seen on MAC computers as well.

Useful Tips

  • If the recorder is not being recognized by your computer, make sure that the recorder is in the OFF
  • To record while plugged in START RECORDING FIRST then plug the recorder into the USB port on your computer or a 5v AC adapter (optional accessory).
  • If you format the recorder all files will be deleted. Only supports FAT32 type of formatting. The recorder will not work properly if you format in any other type.
  • When unplugging the device from your computer please be sure to properly “eject” per your computers operating instructions. Failure to do so may result in permanent damage to the device.

Use this quick start guide in conjunction with manufactures manual.


• Memory capacity: 8GB/16GB
• Recording format: .MP3
• Recording capacity: 288 hours/576 hours
• Battery power consumption: 24 hours (continuous) or 25 days (standby)

If you have any questions or need tech support, please contact us. We are here to help.

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It is the sole responsibility of the buyer and/or user to research any local, state or federal laws that may be applicable to the use of this product and to adhere to those laws.  We are not responsible for damage or third-party claims caused by the use of this product.

If you accidentally delete the operating software you can download below.

Download the time setup file and save it on the recorder. Download it here.

For this file to work there also has to be an empty  file folder named VERSION_V106 on the recorder. To do this :

  • Connect the device to the computer as in section 3 – 1, 2, and 3 above.
  • Create a new folder named VERSION_V106 (must be named exactly as seen here)

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