Jabra Biz 2400 II Duo Headset | QD | NC | Wideband – 2489-820-209

Product Overview

The Jabra Biz 2400 II Duo (2489-820-209) is a professional-grade corded headset engineered for contact center excellence. Featuring wideband audio with 30mm Dynamic PureSound speakers, this duo headset delivers crystal-clear HD voice quality on both ends of the call. The noise-canceling microphone with Air Shock technology filters out background noise and breathing sounds, ensuring your customers hear only your voice in even the busiest environments.

Built for durability in demanding contact center environments, the Biz 2400 II features a Kevlar-reinforced cord and an unbreakable 360° FreeSpin boom arm that can rotate without risk of breaking. At just 77 grams, it's up to 40% lighter than competing headsets, with leatherette ear cushions and padded headband providing all-day comfort. The Quick Disconnect (QD) connector enables instant connectivity to a wide range of desk phone systems when paired with the appropriate bottom cable.

PeakStop technology provides acoustic protection by instantly removing harmful loud sounds before they reach your ears, keeping audio levels safe while maintaining call clarity. The surgical-grade steel construction and gold-plated contacts ensure maximum service life and minimum maintenance costs for enterprise deployments.

Who Should Use This Product?

Contact Center Agents

Designed for high-volume call environments where all-day comfort, durability, and crystal-clear audio quality are essential for customer satisfaction and agent productivity.

Customer Service Representatives

Ideal for professionals who spend extended hours on calls and need reliable noise cancellation to deliver professional customer experiences in busy office environments.

Help Desk & Technical Support

Perfect for support teams requiring clear two-way communication with wideband audio to accurately diagnose issues and provide effective assistance.

Why Choose This Product

The Jabra Biz 2400 II Duo transforms contact center communications with wideband HD audio that lets agents hear customers clearly and resolve calls faster. The duo design with dual speakers provides immersive audio that blocks ambient noise, helping agents focus on conversations rather than their surroundings. At 40% lighter than competing headsets, agents experience less fatigue during extended shifts, leading to improved productivity and job satisfaction.

For IT and operations managers, the Biz 2400 II delivers exceptional total cost of ownership through its durable construction. The Kevlar-reinforced cord, unbreakable FreeSpin boom, and surgical-grade steel components minimize replacement costs and downtime. PeakStop hearing protection helps organizations meet workplace safety requirements while the QD connectivity system provides flexibility to connect to any desk phone or softphone platform with the appropriate adapter.

Will This Work for Me?

Works With

  • All major desk phone systems via QD bottom cables
  • PC/Mac softphones via Jabra Link USB adapters
  • All leading UC platforms when paired with appropriate adapter

Requirements

  • QD bottom cable for desk phone connection (sold separately)
  • Jabra Link adapter (180, 230, 260, 265, or 280) for PC/softphone use

Software

  • Jabra Direct / Jabra Xpress (optional, for device configuration and management)

Note

This is a QD headset requiring a bottom cable or adapter for complete solution. For USB direct connection, see Biz 2400 II USB variants.

What's in the Box

  • Headset with QD connector
  • Leatherette ear cushions
  • Carry pouch
  • Clothing clip

Technical Specifications

Primary Attributes

Active Noise Cancellation (ANC): No
Connectivity: Quick Disconnect (QD)
Corded / Wireless: Corded
Headset Speakers: Stereo (Two Ear)
Warranty: 24 months
Wearing Style: Over the Head, On the Ear
Wideband Audio: Yes

Biz 2400 II Models (8)

View Jabra Biz 2400 II Mono 3-in-1 Headset | QD | UNC – 2406-720-209
Jabra BIZ 2400 II Mono Ultra Noise Canceling 3-in-1 Headset – 2406-720-209
Jabra logo

BIZ 2400 II Mono 3-in-1 UNC

SKU: 2406-720-209
Condition: New
Stock: 30
Quick Disconnect (QD) Quick Disconnect (QD)
$184.37
$316.00
Save $131.63
(42% off)
View Jabra Biz 2400 II Mono Headset | QD | NC – 2403-820-205
Jabra BIZ 2400 II QD Mono Noise Canceling Headset – 2403-820-205
Jabra logo

BIZ 2400 II QD Mono NC

SKU: 2403-820-205
Condition: New
Stock: 250+
Quick Disconnect (QD) Quick Disconnect (QD)
$166.28
$285.00
Save $118.72
(42% off)
View Jabra Biz 2400 II Duo Headset | QD | NC – 2409-820-205
Jabra BIZ 2400 II QD Duo Noise Canceling Headset – 2409-820-205
Jabra logo

BIZ 2400 II QD Duo NC

SKU: 2409-820-205
Condition: New
Stock: 250+
Quick Disconnect (QD) Quick Disconnect (QD)
$184.37
$316.00
Save $131.63
(42% off)
View Jabra Biz 2400 II Duo Headset | QD | UNC – 2409-720-209
Jabra BIZ 2400 II QD Duo Ultra Noise Canceling Headset – 2409-720-209
Jabra logo

BIZ 2400 II QD Duo UNC

SKU: 2409-720-209
Condition: New
Stock: 17
Quick Disconnect (QD) Quick Disconnect (QD)
$194.28
$333.00
Save $138.72
(42% off)
View Jabra Biz 2400 II Duo Headset | QD | NC | Wideband | Balanced – 2489-825-209
Jabra BIZ 2400 II Duo NC QD Wideband Balanced Headset – 2489-825-209
Jabra logo

BIZ 2400 II Duo NC WB Balanced

SKU: 2489-825-209
Condition: New
Stock: 35
Quick Disconnect (QD) Quick Disconnect (QD)
$184.37
$316.00
Save $131.63
(42% off)
View Jabra Biz 2400 II Mono 3-in-1 Headset | QD | NC | Wideband | Balanced – 2486-825-209
Jabra BIZ 2400 II Mono 3-in-1 NC QD Wideband Balanced Headset – 2486-825-209
Jabra logo

BIZ 2400 II Mono 3-in-1 NC WB Balanced

SKU: 2486-825-209
Condition: New
Out of Stock
Quick Disconnect (QD) Quick Disconnect (QD)
$175.62
$301.00
Save $125.38
(42% off)
View Jabra Biz 2400 II Mono 3-in-1 Headset | QD | NC | Wideband – 2486-820-209
Jabra BIZ 2400 II Mono 3-in-1 NC QD Wideband Headset – 2486-820-209
Jabra logo

BIZ 2400 II Mono 3-in-1 NC WB

SKU: 2486-820-209
Condition: New
Stock: 10
Quick Disconnect (QD) Quick Disconnect (QD)
$175.62
$301.00
Save $125.38
(42% off)
View Jabra Biz 2400 II Mono 3-in-1 Headset | QD | NC – 2406-820-205
Jabra BIZ 2400 II QD Mono 3-in-1 Noise Canceling Headset – 2406-820-205
Jabra logo

BIZ 2400 II Mono 3-in-1 NC

SKU: 2406-820-205
Condition: New
Stock: 153
Quick Disconnect (QD) Quick Disconnect (QD)
$175.62
$301.00
Save $125.38
(42% off)