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Outstanding noise cancellation and crystal-clear calls.
2499-823-309
JABRA BIZ 2400 II DUO USB NC CC MS
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2499-823-309
JABRA BIZ 2400 II DUO USB NC CC MS
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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 |  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 |
Outstanding noise cancellation and crystal-clear calls.
Premium comfort with reliable USB connectivity.
Excellent Teams certification and stable performance.
Great audio balance for enterprise meetings.
Professional build quality and long-term durability.
Dependable headset for intensive office use.
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.
The headset uses digital signal processing to actively filter background noise, delivering clear voice transmission in open-plan offices and busy call-center settings.
Yes. It carries Microsoft Teams and Skype for Business certification, ensuring seamless integration, one-touch call answer/end, and an optimized UC experience.
It connects via USB-A for true plug-and-play operation on Windows and MacOS systems without requiring additional drivers.