United States$5,000,000+
Inventory Delivered By
B
Brandon Harrington
5
Mono USB headset delivering balanced audio and reliable clarity.
2496-829-309
Original Stock
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JABRA BIZ 2400 II MONO USB 3-1 NC CC UC
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2496-829-309
- Description:
- JABRA BIZ 2400 II MONO USB 3-1 NC CC UC
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- Brand:
- Jabra
- Condition:
3 Year Extended Warranty
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2496-829-309 Overview
2496-829-309-JABRA BIZ 2400 II MONO USB 3-1 NC CC UC is a professional wired mono headset designed for unified communications and call center environments. Featuring a high-quality noise-cancelling condenser microphone and wideband audio speaker, this headset connects via USB, ensuring crystal-clear digital audio transmission for both input and output. Its mono channel configuration allows for single-ear listening while maintaining awareness of surroundings in dynamic office settings.
This headset offers advanced DSP (Digital Signal Processing) technology for superior voice clarity and integrates best-in-class noise cancellation to reduce background distractions. With a frequency response ranging from 100 Hz to 10 kHz (microphone) and 80 Hz to 16 kHz (speaker), the Jabra BIZ 2400 II Mono USB is optimized for speech. It is fully compatible with unified communications platforms and leading softphones, making it ideal for deployment in boardrooms, meeting spaces, call centers, and UC setups requiring reliable, high-performance audio solutions.
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2496-829-309 Specifications
- Product Type
- Audio Equipment
- Audio Device Type
- Headset
- Microphone Type
- Condenser
- Speaker Type
- N/A
- Form Factor
- Desktop
- Use Case
- Unified Communications / Conference Room / Call Center
- Channel Configuration
- Mono
- Connectivity
- USB
- Input Types
- USB
- Output Types
- USB
- Power Output (if applicable)
- N/A
- Power Source
- USB-Powered
- Frequency Response
- 80 Hz – 16 kHz (Speaker) / 100 Hz – 10 kHz (Microphone)
- Signal Processing
- DSP / Noise Suppression
- Audio Codecs Supported
- N/A
- Mounting Option
- Desktop
- Control Interface
- Physical Buttons
- Wireless Support
- No
- Product Name
- Jabra BIZ 2400 II Mono USB 3-1 NC CC UC
- Height
- 8.26
- Width
- 6.69
- Depth
- 2.0
- Weight
- 0.11
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 2496-829-309 |  7599-838-199 |  2399-823-189 |  4999-829-409 |  930-29-509-101 | |
|---|---|---|---|---|---|
| Product Type | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment |
| Audio Device Type | Headset | Headset | Headset | Headset | Headset |
| Microphone Type | Condenser | Condenser | Condenser | Boom / Noise-Cancelling / N/A | Condenser |
| Speaker Type | N/A | Active | N/A | N/A | N/A |
| Form Factor | Desktop | Portable | Desktop | Desktop | Desktop |
| Use Case | Unified Communications / Conference Room / Call Center | Unified Communications | Unified Communications / Conference Room / Call Center / Meeting Space | Unified Communications / Conference Room / Office | Conference Room / Unified Communications / Meeting Spaces / Office |
| Channel Configuration | Mono | Stereo | Stereo | Stereo | Stereo |
| Connectivity | USB | USB / Bluetooth | USB-C | USB | USB / DECT |
| Input Types | USB | USB / Bluetooth | USB-C | USB | USB |
| Output Types | USB | 3.5mm / Bluetooth | USB-C | USB | USB |
| Power Output (if applicable) | N/A | N/A | N/A | N/A | N/A |
| Power Source | USB-Powered | Battery / USB-Powered | USB-Powered | USB-Powered | Battery / AC Adapter |
| Frequency Response | 80 Hz – 16 kHz (Speaker) / 100 Hz – 10 kHz (Microphone) | 20 Hz – 20 kHz (music), 150 Hz – 6.8 kHz (calls) | 100 Hz – 10 kHz | Headset: 20 Hz – 20 kHz; Microphone: 150 Hz – 7 kHz | 150 Hz – 6.8 kHz |
| Signal Processing | DSP / Noise Suppression | DSP / AEC / Noise Suppression / AGC | DSP / Noise Suppression | DSP / AEC / Noise Suppression | DSP / AEC / Noise Suppression |
| Audio Codecs Supported | N/A | SBC | N/A | N/A | N/A |
| Mounting Option | Desktop | N/A | Desktop | Desktop | Desktop |
| Control Interface | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons |
| Wireless Support | No | Bluetooth | No | No | RF |
| Product Name | Jabra BIZ 2400 II Mono USB 3-1 NC CC UC | Jabra Evolve 75 UC Stereo Headset Head-band Bluetooth Black (7599-838-199) | Jabra BIZ 2300 Duo USB-C MS (2399-823-189) | Jabra Evolve 20 SE Stereo UC Leatherette | 930-29-509-101-PRO 930 DUO Headset beidohrig schnurlos, DECT - Headset |
| Height | 8.26 | 6.89 | 6.97 | 6.6 | 6.2 |
| Width | 6.69 | 7.09 | 7.24 | 7.1 | 6.8 |
| Depth | 2.0 | 2.32 | 2.36 | 2.0 | 2.3 |
| Weight | 0.11 | 0.42 | 0.11 | 0.33 | 0.18 |
Reviews & Ratings
J
Jordan Whitaker
5
Comfortable fit with dependable UC compatibility.
N
Nathan Holloway
5
Strong build quality supporting heavy office usage.
C
Connor Langford
4
Clear voice transmission during long meetings.
R
Ryan Prescott
5
Professional communication tool with consistent reliability.
Questions & Answers
What operating systems is the Jabra Biz 2400 II Mono USB compatible with?
The headset is plug-and-play compatible with Windows 10, Windows 11, Mac OS 10.11+ and most major softphone platforms.
How do I connect the Jabra Biz 2400 II Mono USB to my computer?
Simply plug the USB-A connector into any available USB port—no drivers required for basic audio and call-control functions.
What noise-cancellation technology does this headset use?
It features a state-of-the-art triple-microphone noise-canceling boom that filters out background noise for clear voice transmission.
Which call-control features are integrated on the inline controller?
The controller provides one-touch answer/end, mute toggle, volume up/down and busy-light indication for efficient call handling.
What items are included in the Jabra Biz 2400 II Mono USB package?
The kit contains the mono headset, detachable foam ear cushion, leatherette ear cushion, headband cushions and quick-disconnect cable.
What wearing styles are supported by this headset?
You can wear it over-the-head with an adjustable steel-reinforced headband or position the ear hook and ear gel for a single-ear fit.
How do I mute the microphone during a call?
Press the dedicated mute button on the inline controller; the red busy light illuminates to confirm mute status.
How can I adjust the fit for maximum comfort?
Slide the headband to customize crown fit, rotate the microphone boom and choose between foam or leatherette cushions.
Is the Jabra Biz 2400 II Mono USB certified for unified-communication platforms?
Yes, it is UC-certified for Skype for Business, Cisco, Avaya and all major softphone applications.
What warranty does Jabra offer for this headset?
Jabra provides a two-year global warranty covering defects in materials and workmanship under normal use.
What frequency range and speaker sensitivity does this headset deliver?
It offers a wideband audio range of 150 Hz–6.8 kHz and a speaker sensitivity of 118 dB ±3 dB for clear, natural sound.
How should I clean and maintain the headset?
Use a soft, lint-free cloth with mild alcohol solution, avoid liquids entering the hardware and store it in a dust-free area.
Is the microphone boom flexible and durable?
Yes, the boom arm is reinforced with steel wire for reliable positioning and long-term durability.
Can I use this headset with a desk phone or smartphone?
Yes, the 3-in-1 quick-disconnect cable supports USB-A, desk-phone interface and 3.5 mm mobile connectivity with optional adapters.
What are the advantages of the mono version vs. the duo version?
The mono model provides situational awareness and reduced fatigue while maintaining professional call clarity in one ear.
Where can I purchase replacement parts for the Jabra Biz 2400 II Mono USB?
Replacement cushions, cables and headbands are available through authorized Jabra resellers or the official Jabra online store.