JBL Quantum 350 Wireless

JBL Quantum 350 Wireless

Wireless PC gaming headset with detachable boom mic

Sold from 2021 until now

Getting started with your JBL Quantum 350 Wireless

Getting started with your JBL Quantum 350 Wireless

Quick Start Guide

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Quick Start Guide & Downloads

Product Specifications

Weight (g)
252
Driver size (mm)
40
Active Frequency Response
20 Hz – 20 kHz
Driver sensitivity at 1kHz/1mW (dB)
115 dB SPL @1 kHz
Dynamic frequency response range (Hz)
20 Hz - 20 kHz
Impedance (ohms)
32
Ear Cup Depth (cm)
2.5
Ear Cup Depth (in)
1
Ear Cup External Height (cm)
10.2
Ear Cup External Height (in)
4
Ear Cup External Width (cm)
8.9
Ear Cup External Width (in)
3.5
Ear Cup Internal Height (cm)
6.1
Ear Cup Internal Height (in)
2.4
Ear Cup Internal Width (cm)
4.9
Ear Cup Internal Width (in)
1.9
Charging Cable Length (m)
1
Charging Cable Length (ft)
3.3
Charging time (hours from empty)
2
Maximum play time (hours)
22
Charging cable
Yes
Built-in Microphone
Yes
Over-ear
Yes
Rechargable battery
Yes
Wireless
Yes

Sound is Survival

Ready to level up your gameplay? Meet the JBL Quantum 350 Wireless gaming headset. From the quietest footsteps to the loudest laser blasts, JBL’s QuantumSOUND Signature puts you in the center of every scene. No matter how crazy the action gets, the detachable, directional voice focus boom mic means other players can always hear you clearly. Lossless wireless, 22-hour battery life and lightweight memory foam ear cushions mean you’ll never miss a second of mayhem during even your longest gaming sessions. JBL QuantumENGINE PC software fine-tunes the sound for the ultimate competitive advantage. Your opponents won’t know what hit them.

When split-second timing is key, you can't be tied down to your system. Gaming grade lossless 2.4GHz wireless gives you total freedom of movement, with no audio drops in the heat of battle.
From the quietest footsteps to the loudest laser blasts, JBL's cinematic QuantumSOUND signature makes every scene epic. Powered by 40mm drivers, the JBL Quantum 350 Wireless fully immerses you in the game for a true competitive edge.
Even when games get noisy, the JBL Quantum 350 Wireless's detachable, directional voice focus boom mic means your squad will always hear you clearly. There's also a handy mute feature if you need to run silent for a secret mission in the real world.
22 hours of battery life means great JBL sound throughout even your longest gaming sessions. Still need extra time? Five minutes gets you an extra hour of playback time, and you can charge while you play with the USB charging cable.
The durable JBL Quantum 350 Wireless has a lightweight headband and PU-wrapped memory foam ear cushions for total comfort even during a hardcore all-night epic.
Control what you hear, improve how you play. Use the PC software suite to customize JBL QuantumSURROUND, EQ, sidetone, mic settings, and more for the ultimate immersive sound experience.
Don't miss a second of strategy or smack talk. The JBL Quantum 350 Wireless headset is certified for DISCORD, the most popular chat application in the world. You can also use it on Skype and TeamSpeak when you're at work.
The JBL Quantum 350 Wireless headset is optimized for PC and can be connected wirelessly (via the 2.4GH) with PC, PS*, Nintendo Switch™** and Mac. The features powered by JBL QuantumENGINE (JBL QuantumSURROUND, RGB, EQ, Microphone settings etc.) are only available on PC. Check the connectivity guide for compatibility. (*) Wirelessly compatible with all PS models including PS5 and PS4. (**) Wirelessly compatible with Nintendo Switch when docked only.

FAQs & How-Tos

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  • 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.
    FLIP DOWN.png


    How to check your PC settings for the correct recording device
    1. Go to Control Panel
    Control panel.png
    2. Select Hardware and Sound
    Step 2.PNG
    3. Click on Sound
    Step 3.PNG
    3 Select  Recording
    Recording tap.jpg

    4. Make sure to select the proper recording device.

    1. Right-click on it Quantum headset.

      Set default communication device.jpg
    2. Now select "Set Default Device" or Select "Default Communication Device"

      Set default communication device 2.jpg

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

    6. Choose Levels.
    Levels 1.jpg

    7. Adjust accordingly.
    Levels 2.jpg  

    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.
    Volume issue Q800 - Part3.png

    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.
    Volume issue Q800 - Part4.png

    Finally, you can also do a short press on the Smart Ambient button on the headset (if your headset, has this feature)
    Volume issue Q800 - Part5.png

  • JBL QUANTUM ENGINE
    Software Update Release Notes
    ------------------------------------------------------------------------

    Version:  1.19.0.2025
    Release Media: Via QuantumENGINE
    Release Date: June 20, 2024

    What’s New

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

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

    Version:  1.17.0.1950
    Release Media: Via QuantumENGINE
    Release Date: November 21, 2023

    What’s New

    1. Add product support for Quantum Stream Talk
    2. Add EQ store feature for Quantum 350 & Quantum 360 P/ X
    3. Firmware update stability improvement for Quantum 810
    4. UI improvements for better user experience

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

    Version:  1.6.0.1053
    Release Media: Via QuantumENGINE
    Release Date: January 21, 2021

    What’s New

    1. Add welcome feature
    2. Add surround mode feature
    3. ANC/TT toggle has been implemented
    4. Sidetone setting has been turned off by default
    5. QuantumSURROUND/QuantumSPHERE quality and performance improvement
    6. Quantum 300 mic gain improvement
    7. Quantum 800 firmware update stability improvement
    8. Bugs fixed

     


     
  • 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.
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