JBL Quantum 350 Wireless

Yes, you can use the headset while charging!

You can clean it by wiping it gently with a damp cloth. Take extra care not to let water leak into the speaker chamber, as it will damage the speaker drivers.

You might have to add a USB extension dock to get the JBL Quantum 350/600/800/810 dongle as close to the headset, or place the common sources of interference (e.g. routers, Wi-Fi speakers etc.) as far from the JBL Quantum 350/600/800/810 dongle.

Ensure that only one voice chat application is in use while in-game. Be sure you hear a click when the microphone is flipped down. The microphone will only function when it is flipped down fully. If you see a red LED on the microphone, it is muted.



How to check your PC settings for the correct recording device
1. Go to Control Panel

2. Select Hardware and Sound

3. Click on Sound

3 Select  Recording


4. Make sure to select the proper recording device.

1. Right-click on it Quantum headset.

   

2. Now select "Set Default Device" or Select "Default Communication Device"

   

5. Check the microphone levels by right-click on your Quantum headset. Then click on Properties


6. Choose Levels.


7. Adjust accordingly.
 

Please also make sure the volume control on the headset is turned up. Rotate the volume wheel on your headset to increase the volume.
Check that your headset's Game-Chat balance dial and ensure that the balance is correct, you might refer to the screenshot below from the QuantumEngine PC software.


If you still cannot hear the game or music audio, or if the volume is still very low, check if the TalkThrough is activated via the QuantumEngine software.


Finally, you can also do a short press on the Smart Ambient button on the headset (if your headset, has this feature)

You can clean it by wiping it gently with a damp cloth. Take extra care not to let water leak into the speaker chamber, as it will damage the speaker drivers.

Try a manual pairing of the headset and the dongle.
Hold the power button in the "On" position for 5 seconds on the headset, and then hold the button on the dongle for 5 seconds. This should force a manual pairing, allowing the PC to again recognize the headset.
Be sure to check multiple USB ports (to confirm it’s not an issue with the USB port).
If the dongle can’t be manually paired either, please contact customer support.
 

The JBL Quantum 350 Wireless headset is compatible via 2.4GHz wireless connection with:

• PC
• PlayStation
• Mac
• Nintendo Switch.

QUANTUM 350

Software Update Release Notes

------------------------------------------------------------------------

Version:  1.4.4

Release Date: Nov 22, 2023

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Add EQ store feature that retains EQ changes made in Quantum Engine

QUANTUM ENGINE
Software Update Release Notes
------------------------------------------------------------------------
Software Version:  V1.2.8 (MAC only)
Release Date:  July 8, 2024
Release Media:  Apple Store

What’s New

1. Improve FW upgrade stability for Quantum 810, Quantum 910, Quantum 910P & Quantum 910X

------------------------------------------------------------------------
Software Version:  V1.19.0.2025
Release Date:  June 20, 2024
Release Media:  Website & Quantum ENGINE

What’s New

1. Extend support for Quantum 50C & Quantum 360 Wireless
2. Add max volume indicator feature for Quantum Stream Wireless
3. UI improvements for better user experience

------------------------------------------------------------------------
Software Version:  V1.18.0.1985
Release Date:  January 5, 2024
Release Media:  Website & Quantum ENGINE

What’s New

1. UI improvements for better UX
2. Add support for Quantum Stream Studio & Quantum Stream Wireless

------------------------------------------------------------------------
Software Version:  V1.11.0.1511
Release Date:  September 19, 2022
Release Media:  Website & Quantum ENGINE

What’s New

1. Improved firmware stability upgrading process flow for the QUANTUM 910.

------------------------------------------------------------------------
Software Version:  V1.11.0.1510
Release Date:  August 24, 2022
Release Media:  Website & Quantum ENGINE

What’s New

1. Added support for the new QUANTUM 910 Wireless Headphones
2. Over 30 improvements addressing user interface, usability, and stability of the app for a better user experience.

QUANTUM ENGINE 

Software Update Release Notes 

Version 1.6.0.1053
Release Date: 1/21/21
 

1. Welcome feature has been implemented.

2. Surround Modes feature has been implemented.

3. ANC/TT toggle has been implemented.

4. The sidetone has been turned off by default for all models to avoid confusion.

5. QuantumSURROUND/QuantumSPHERE quality & performance have been improved.

6. Quantum 300 Mic Gain has been improved.

7. Quantum 800 FW update reliability has been improved.

8. Minor Bugs Fixed