United States$5,000,000+
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B
Bennett Rowe
5
Outstanding noise cancellation and crystal-clear calls.
2499-823-309
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JABRA BIZ 2400 II DUO USB NC CC MS
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2499-823-309
- Description:
- JABRA BIZ 2400 II DUO USB NC CC MS
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- Brand:
- Jabra
- Condition:
3 Year Extended Warranty
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2499-823-309 Overview
2499-823-309-JABRA BIZ 2400 II DUO USB NC CC MS is a professional binaural (dual-ear) USB headset designed for unified communications (UC) and contact center environments. As a wired headset, it features a noise-cancelling condenser microphone and stereo headphones, delivering reliable audio performance for both input and output. This model connects via USB, ensuring digital audio transmission and compatibility with modern conferencing systems and softphones, particularly those certified for Microsoft Skype for Business and Teams. The headset supports wideband (HD) audio with a frequency response of 100 Hz to 12 kHz for the speakers, and up to 6.8 kHz for the microphone, providing clear voice transmission and rich sound for calls and virtual meetings.
With DSP (Digital Signal Processing) and advanced noise-cancelling technology, the Jabra BIZ 2400 II DUO USB NC CC MS reduces background distractions and enhances call clarity, making it ideal for busy offices, boardrooms, and meeting spaces. The headset features in-line controls for call management and volume adjustment, and is USB-powered for plug-and-play simplicity on Windows and Mac platforms. Thanks to its lightweight, ergonomic build and reinforced Kevlar-cord, it is designed for all-day comfort and durability in demanding unified communications and contact center deployments. Typical use cases include customer service centers, remote working, and enterprise UC installations.
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2499-823-309 Specifications
- Product Type
- Audio Equipment
- Audio Device Type
- Headset
- Microphone Type
- Condenser
- Speaker Type
- N/A
- Form Factor
- Portable
- Use Case
- Unified Communications / Conference Room / Contact Center
- Channel Configuration
- Stereo
- Connectivity
- USB
- Input Types
- USB
- Output Types
- USB
- Power Output (if applicable)
- N/A
- Power Source
- USB-Powered
- Frequency Response
- 100 Hz – 12 kHz (Speaker), 100 Hz – 6.8 kHz (Microphone)
- Signal Processing
- DSP / Noise Suppression
- Audio Codecs Supported
- N/A
- Mounting Option
- N/A
- Control Interface
- Physical Buttons
- Wireless Support
- No
- Product Name
- Jabra BIZ 2400 II Duo USB NC CC MS
- Height
- 7.5
- Width
- 6.7
- Depth
- 2.0
- Weight
- 0.13
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 2499-823-309 |  6593-829-409 |  7899-829-209 |  7899-823-109 |  9559-553-111 | |
|---|---|---|---|---|---|
| Product Type | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment |
| Audio Device Type | Headset | Headset | Headset | Headset | Headset |
| Microphone Type | Condenser | Dynamic | Condenser | Condenser | Boom / Noise-Cancelling / N/A |
| Speaker Type | N/A | Active | Active | Active | Active |
| Form Factor | Portable | Portable | Portable | Portable | Portable |
| Use Case | Unified Communications / Conference Room / Contact Center | Unified Communications / Conference Room / Office | Unified Communications / Conference Room / Meeting Spaces / Streaming | Unified Communications / Conference Room / Office / Streaming | Conference Room / Unified Communications / Office / Call Center |
| Channel Configuration | Stereo | Mono | Stereo | Stereo | Stereo |
| Connectivity | USB | USB / Bluetooth | USB / 3.5mm | USB / 3.5mm | USB / RJ-9 / DECT Wireless |
| Input Types | USB | USB / Bluetooth | USB / 3.5mm | USB / 3.5mm | USB / RJ-9 |
| Output Types | USB | Speaker / 3.5mm | 3.5mm | USB / 3.5mm | USB / RJ-9 |
| Power Output (if applicable) | N/A | N/A | N/A | N/A | N/A |
| Power Source | USB-Powered | USB-Powered / Battery | USB-Powered | USB-Powered | Battery / AC Adapter (base station) |
| Frequency Response | 100 Hz – 12 kHz (Speaker), 100 Hz – 6.8 kHz (Microphone) | 100 Hz – 10 kHz (Speaker), 150 Hz – 6.8 kHz (Microphone) | 20 Hz – 20 kHz | 20 Hz – 20 kHz | 40 Hz – 16 kHz (Speaker), 100 Hz – 7 kHz (Microphone) |
| Signal Processing | DSP / Noise Suppression | DSP / Noise Suppression | DSP / ANC | DSP / Noise Suppression | DSP / Noise Suppression |
| Audio Codecs Supported | N/A | SBC | N/A | N/A | N/A |
| Mounting Option | N/A | N/A | Desktop | Desktop | N/A |
| Control Interface | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons |
| Wireless Support | No | Bluetooth | No | No | DECT |
| Product Name | Jabra BIZ 2400 II Duo USB NC CC MS | Jabra Evolve 65 UC mono - Headset (6593-829-409) | Jabra Evolve 80 UC Stereo (7899-829-209) | Jabra Evolve 80 MS Stereo (7899-823-109) | Jabra Engage 65 Stereo - Headset (9559-553-111) |
| Height | 7.5 | 6.73 | 8.1 | 8.07 | 7.32 |
| Width | 6.7 | 6.77 | 7.8 | 7.68 | 6.38 |
| Depth | 2.0 | 2.28 | 2.2 | 2.87 | 2.62 |
| Weight | 0.13 | 0.2 | 0.77 | 0.94 | 0.18 |
Reviews & Ratings
H
Harrison Doyle
4
Premium comfort with reliable USB connectivity.
Z
Zachary Quinn
5
Excellent Teams certification and stable performance.
C
Calvin Drake
4
Great audio balance for enterprise meetings.
E
Emmett Shaw
5
Professional build quality and long-term durability.
L
Landon Pierce
5
Dependable headset for intensive office use.
Questions & Answers
What is the Jabra Biz 2400 II Duo USB NC CC MS?
The Jabra Biz 2400 II Duo USB NC CC MS is a professional dual-ear USB headset featuring an advanced noise-canceling microphone, inline call controls, and Microsoft certification for superior call performance.
How does the noise-canceling microphone perform in noisy environments?
The headset uses digital signal processing to actively filter background noise, delivering clear voice transmission in open-plan offices and busy call-center settings.
Is the Jabra Biz 2400 II Duo USB NC CC MS certified for Microsoft Teams and Skype for Business?
Yes. It carries Microsoft Teams and Skype for Business certification, ensuring seamless integration, one-touch call answer/end, and an optimized UC experience.
What type of connectivity does this headset offer?
It connects via USB-A for true plug-and-play operation on Windows and MacOS systems without requiring additional drivers.
Which devices and platforms are compatible with this headset?
The headset works with Windows and MacOS computers and supports popular VoIP and UC platforms such as Teams, Zoom, Cisco Jabber, Avaya, and more.
How easy is it to set up and start using this headset?
Setup is plug-and-play: simply connect the USB-A plug to your PC or Mac and your system auto-detects the Jabra Biz 2400 II for immediate use.
What controls are available on the inline call controller?
The in-line controller offers answer/end call, volume up/down, and mute functions, with an LED indicating mute status for quick call management.
How long is the cable on the Jabra Biz 2400 II Duo USB NC CC MS?
It features a 1.8-meter cable, providing ample length to move comfortably around your desk without disconnecting.
What is the wearing style and comfort level of this headset?
This dual-ear, over-the-head headset has a padded, adjustable headband and soft leatherette ear cushions designed for stable, all-day comfort.
What are the key features of the Jabra Biz 2400 II Duo USB NC CC MS?
Key features include dual-ear design, advanced noise-canceling mic, USB-A plug-and-play connectivity, Microsoft certification, and integrated call controls.
Does the headset come with a warranty?
Yes, it includes a two-year manufacturer’s warranty that covers defects in materials and workmanship for worry-free use.
How comfortable is the Jabra Biz 2400 II Duo for extended use?
Its lightweight construction, flexible boom arm, and soft ear cushions minimize pressure and fatigue, making it ideal for long shifts.
Can I use this headset with non-Microsoft VoIP applications?
Absolutely. The USB-A connection and broad UC compliance let you use it with Zoom, Cisco, Avaya, Google Meet, and other softphones.
How does the dual-ear design impact audio quality?
Dual-ear, noise-isolating earcups deliver stereo sound and block ambient noise, ensuring clear audio for calls and multimedia.
Is the Jabra Biz 2400 II suitable for hot-desking environments?
Yes, its durable build and plug-and-play USB connectivity make it perfect for shared workstations and quick user swaps.
What accessories are included in the box?
The package includes the Jabra Biz 2400 II Duo headset, dual ear cushions, a USB-A cable, a cable management clip, and a quick-start guide.