Skip to main contentSkip to footer

Explore more like this

Slide 1 of 4

Overview

The JBL Quantum 300 over-ear headset blends immersive QuantumSOUND Signature audio with memory foam ear cushions for a comfortable listening experience. A voice-focus microphone helps keep your communications clear during every session. Designed for wired use with a convenient 3.5mm cable.
  • Over-ear headset for long wearing comfort
  • Wired connection for reliable, lag-free audio
This description was generated by AI and reviewed for accuracy.
Open Box

Open Box - JBL Quantum 300 Gaming Headset - Black

Model: JBLQUANTUM300BLKAM
Web Code: 18927238
Sold and shipped by | 4.4 seller rating (266 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Enjoy on orders from this seller.

Seller Return Policy

Read return policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What you need to know
  • Over-ear headphones designed for extended comfort during long sessions
  • QuantumSOUND Signature delivers immersive gaming audio
  • Lightweight design with memory foam ear cushions for comfort
  • Voice-focus microphone lets you communicate clearly with others
Audio Performance & Sound Quality
  • JBL QuantumSOUND Signature and QuantumSURROUND offer immersive audio for gaming
  • Dynamic frequency response range of 20Hz–20kHz supports balanced sound
  • Driver sensitivity of 100dB SPL at 1kHz/1mW provides clear, detailed playback
  • Impedance of 32 ohms matches a wide range of devices
Fit Comfort & Design
  • Memory foam ear cushions and lightweight headband provide comfort through long sessions
  • Fabric headband adds a soft, flexible feel
Connectivity & Smart Features
  • Wired headset connects via 3.5mm audio cable input
Calls & Microphones
  • Built-in voice-focus microphone helps ensure clear in-game communication
This description was generated by AI and reviewed for accuracy.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Headphones, earphones, and ear buds (of any kind including AirPods)
Return/Exchange Period
30 days
Condition
Unopened, No signs of use

Due to hygiene concerns, this product cannot be returned if opened

Learn more about returning a Marketplace product