JBL Quantum 350 Wireless PC Gaming Headset – 2.4GHz Wireless, 40mm Drivers, 22H Battery, Detachable Mic – Black (Open Sealed)

Description

The JBL Quantum 350 Wireless – Black is a wireless gaming headset designed to deliver immersive gaming audio, reliable low-latency connectivity, and clear team communication.

Powered by 40mm dynamic drivers and JBL QuantumSOUND Signature, the headset is tuned to bring out important gaming details ranging from subtle footsteps to powerful action effects.

Its dedicated 2.4GHz wireless connection provides cable-free gaming, while the rechargeable battery delivers up to 22 hours of playback. A quick 5-minute charge provides approximately 1 additional hour of playback, and the headset supports charging while playing.

The detachable boom microphone makes communication convenient, while memory-foam ear cushions and a lightweight 252g design provide comfort during extended gaming sessions.

The headset is optimized for PC while also supporting wireless use with PlayStation, Nintendo Switch, and Mac through its USB wireless adapter.

This is the Black JBLQ350WLBLKAM version and is sold as Open Sealed.

Key Features

• JBL Quantum 350 Wireless Gaming Headset
• JBL QuantumSOUND Signature
• Gaming-grade 2.4GHz Wireless
• 40mm Dynamic Drivers
• Up to 22 Hours Battery Life
• 5-Minute Quick Charge = Approx. 1 Hour Playback
• Charge while playing
• Detachable Boom Microphone
• Microphone mute function
• Microphone windshield included in standard package
• JBL QuantumENGINE support
• JBL QuantumSURROUND on supported PC setups
• EQ customization
• Sidetone adjustment
• Microphone customization
• Discord Certified
• Memory-foam ear cushions
• PU leatherette covering
• Lightweight 252g construction
• Over-ear design
• USB Wireless Adapter
• USB-C Charging
• Optimized for PC
• Wireless compatibility with PS5 / PS4 / Nintendo Switch / Mac
• Color: Black
• Model: JBLQ350WLBLKAM
• Condition: Open Sealed

Gaming-Grade 2.4GHz Wireless

The JBL Quantum 350 Wireless uses a dedicated 2.4GHz USB wireless connection designed for gaming.

Unlike a standard Bluetooth headset, the Quantum 350 Wireless uses its included USB audio adapter to provide its wireless gaming connection.

Wireless Specifications

• Connection: 2.4GHz Wireless
• Wireless Frequency: 2402MHz–2480MHz
• Wireless Modulation: GFSK
• USB Audio Adapter: Included in standard package
• Bluetooth: No

The wireless USB adapter is an essential accessory for normal wireless operation and should be verified carefully on an Open Sealed unit.

JBL QuantumSOUND Signature

The Quantum 350 Wireless features JBL QuantumSOUND Signature, designed specifically for gaming.

Its 40mm dynamic drivers deliver detailed audio for games, movies, music, and voice communication.

Audio Specifications

• Driver Size: 40mm
• Driver Type: Dynamic
• Frequency Response: 20Hz–20kHz
• Sensitivity: 115dB SPL @ 1kHz
• Maximum SPL: 93dB
• Impedance: 32Ω

JBL QuantumENGINE

On supported computers, JBL QuantumENGINE provides additional control over the headset's audio experience.

Supported customization includes:

• JBL QuantumSURROUND
• EQ Adjustment
• Sidetone
• Microphone Settings
• Additional Audio Customization

Some advanced QuantumENGINE functions are platform-dependent and should not be assumed to work identically on consoles.

Detachable Boom Microphone

The JBL Quantum 350 Wireless includes a detachable boom microphone designed for gaming communication.

A microphone mute function provides convenient control when voice chat isn't needed.

Microphone Specifications

• Microphone Included: Yes
• Type: Detachable Boom
• Pickup Pattern: Omnidirectional
• Frequency Response: 100Hz–10kHz
• Sensitivity: -42dBV/Pa @ 1kHz
• Mute Function: Yes
• Foam Windshield: Included in standard package

JBL describes the microphone as a directional voice-focus design, while its technical specification sheet lists the pickup pattern as omnidirectional.

Up to 22 Hours Battery Life

The built-in 500mAh lithium-ion battery provides up to 22 hours of music playback.

Battery Specifications

• Battery Type: Lithium-Ion
• Battery Capacity: 500mAh
• Battery Voltage: 3.7V
• Maximum Playback: Up to 22 Hours
• Charging Time: Approx. 2 Hours
• Quick Charge: 5 Minutes = Approx. 1 Hour Playback
• Power & Play: Yes – Charge While Playing
• Charging Port: USB-C

Actual battery life varies depending on volume, audio content, battery condition, usage, and other factors.

Memory Foam Comfort

The Quantum 350 Wireless combines a lightweight headband with PU-wrapped memory-foam ear cushions.

At approximately 252g, the headset is relatively lightweight for a wireless over-ear gaming headset, helping provide comfortable use during extended gaming sessions.

Discord Certified

The JBL Quantum 350 Wireless is Discord Certified and is designed for gaming communication.

JBL also lists compatibility with communication services including:

• Discord
• Skype
• TeamSpeak

Multi-Platform Compatibility

The JBL Quantum 350 Wireless is optimized for PC but supports 2.4GHz wireless operation with multiple platforms.

Official Wireless Compatibility

• PC
• PlayStation 5
• PlayStation 4
• Nintendo Switch
• Mac

JBL notes that QuantumENGINE-powered features are primarily available through supported computer configurations, so feature availability differs by platform.

Specifications

Quick Product Fields

• Noise Cancellation (Mic): No dedicated ANC / Voice-Focus Boom Mic
• Charging Port: USB-C
• Color: Black
• Microphone Included: Yes
• Mic Type: Detachable Boom
• RGB Lighting: No
• Compatible Devices: PC / PS5 / PS4 / Nintendo Switch / Mac
• Connection Type: Wireless – 2.4GHz USB

What's Included

The standard JBL package contains:

• 1× JBL Quantum 350 Wireless Headset
• 1× USB Wireless Audio Adapter
• 1× USB Type-C to Type-A Charging Cable
• 1× Foam Windshield for Boom Microphone
• Quick Start Guide
• Warranty Card
• Safety Sheet

Because this unit is Open Sealed, the actual accessories included with the individual package should be verified before sale.

Important Bluetooth Note

The JBL Quantum 350 Wireless does not use Bluetooth.

Its wireless gaming connection is provided through the included dedicated 2.4GHz USB audio adapter.

The USB wireless adapter is therefore an important part of the product and should be confirmed as included with an Open Sealed unit.

Important Surround Sound Note

JBL QuantumSURROUND and other QuantumENGINE features depend on supported computer software and configurations.

These features should not be assumed to operate identically when the headset is connected to PlayStation, Nintendo Switch, or other devices.

Important Compatibility Note

JBL officially lists wireless compatibility with:

PC / PS5 / PS4 / Nintendo Switch / Mac

The headset is optimized primarily for PC gaming, and advanced JBL QuantumENGINE functionality is platform-dependent.

Important Note – Open Sealed

This product is listed as Open Sealed, meaning the original packaging has been opened.

Before publishing or sale, verify the individual unit's headset condition, battery condition, detachable microphone, USB wireless audio adapter, USB charging cable, microphone windshield, included accessories, packaging condition, and warranty details.

Best For

• PC Gaming
• PS5 / PS4 Gaming
• Nintendo Switch
• Mac Gaming
• FPS & Competitive Gaming
• Multiplayer Gaming
• Discord & Voice Chat
• Long Gaming Sessions
• Wireless Gaming Setups
• Users looking for a lightweight wireless headset

Why Choose the JBL Quantum 350 Wireless?

• Gaming-grade 2.4GHz wireless connectivity provides cable-free gaming.
• 40mm dynamic drivers deliver JBL QuantumSOUND Signature.
• Up to 22 hours of battery life supports extended gaming sessions.
• 5-minute quick charging provides approximately 1 hour of playback.
• Supports charging while playing when additional runtime is needed.
• Detachable boom microphone provides convenient voice communication.
• JBL QuantumENGINE enables extensive audio customization on supported computers.
• QuantumSURROUND provides immersive virtual surround audio on supported setups.
• Discord certification makes it well suited to multiplayer communication.
• Memory-foam ear cushions provide long-session comfort.
• Lightweight 252g design reduces unnecessary weight during extended gaming.
• Multi-platform wireless support makes it useful across PC, PlayStation, Nintendo Switch, and Mac.