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Excellent mono clarity with wideband audio.
2486-825-209
JABRA BIZ 2400 II MONO 3-1 NC WB BALANCE
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2486-825-209
JABRA BIZ 2400 II MONO 3-1 NC WB BALANCE
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2486-825-209-JABRA BIZ 2400 II MONO 3-1 NC WB BALANCE is a professional wired headset designed specifically for enterprise Unified Communications (UC) and contact center environments. This headset features a single-ear (mono) design, an advanced noise-cancelling condenser microphone, and a speaker optimized for clear voice communication. The Jabra BIZ 2400 II Mono 3-1 NC WB connects via a standard 3.5mm jack and Quick Disconnect (QD) cord, supporting flexible connectivity to desk phones and compatible UC solutions. With a wideband frequency response of 80 Hz – 16 kHz, it ensures natural-sounding calls and premium audio clarity.
This headset is built for all-day comfort with its lightweight, adjustable form factor and comes with three wearing styles: headband, neckband, and earhook, allowing users to choose their preferred fit. Designed for compatibility with contact centers, offices, boardrooms, and other professional environments, the Jabra BIZ 2400 II Mono delivers robust durability, enhanced acoustic protection, and DSP-based noise suppression for crystal-clear conversations even in noisy surroundings. Typical use cases include enterprise telephony, UC deployments, conferencing, and high-volume customer service applications.
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 2486-825-209 |  26599-989-998 |  26599-889-999 |  4999-829-209 |  1559-0159 | |
|---|---|---|---|---|---|
| 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 | Condenser | Condenser |
| Speaker Type | N/A | Active | Active | N/A | N/A |
| Form Factor | Portable | Portable | Portable | Desktop | Desktop |
| Use Case | Unified Communications / Conference Room / Contact Center / Office | Unified Communications | Unified Communications | Unified Communications / Conference Room / Office | Unified Communications / Conference Room / Call Center |
| Channel Configuration | Mono | Stereo | Mono | Stereo | Stereo |
| Connectivity | 3.5mm / Quick Disconnect (QD) | USB, Bluetooth | USB / Bluetooth | USB | USB |
| Input Types | N/A | USB, Bluetooth | USB / Bluetooth | USB | USB |
| Output Types | 3.5mm | USB, Bluetooth | USB / Bluetooth | USB | USB |
| Power Output (if applicable) | N/A | N/A | N/A | N/A | N/A |
| Power Source | N/A | Battery, USB-Powered | Battery / USB-Powered | USB-Powered | USB-Powered |
| Frequency Response | 80 Hz – 16 kHz | 20 Hz – 20 kHz | 20 Hz – 20 kHz | 150 Hz – 7 kHz | 20 Hz – 6.8 kHz (Microphone), 20 Hz – 20 kHz (Speaker) |
| Signal Processing | DSP / Noise Suppression | DSP, Noise Suppression | DSP / AEC / Noise Suppression | DSP / Noise Suppression | DSP / AEC / Noise Suppression |
| Audio Codecs Supported | N/A | SBC, AAC | SBC | N/A | N/A |
| Mounting Option | N/A | Desktop | Desktop | N/A | N/A |
| Control Interface | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons |
| Wireless Support | No | Bluetooth | Bluetooth | No | No |
| Product Name | Jabra BIZ 2400 II Mono 3-1 NC WB Balance | Jabra Evolve2 65 LINK380A UC Stereo Beige (26599-989-998) | Jabra Evolve2 65 Link380A UC Mono Black | Jabra Evolve 20 UC Stereo (4999-829-209) | Jabra BIZ 1500 Duo USB |
| Height | 7.1 | 7.87 | 7.1 | 7.0 | 7.68 |
| Width | 5.5 | 6.38 | 6.4 | 6.0 | 5.71 |
| Depth | 2.3 | 2.32 | 2.7 | 2.0 | 2.17 |
| Weight | 0.13 | 0.40 | 0.39 | 0.25 | 0.15 |
Excellent mono clarity with wideband audio.
Durable headset built for heavy use.
Reliable noise cancellation in busy spaces.
Comfortable and professional design.
Clear conversations across platforms.
Strong performance for contact centers.
The Jabra BIZ 2400 II Mono 3-1 NC WB Balance features advanced noise-cancelling technology with a triple-layer microphone system and an industry-leading noise-shielding boom for exceptionally clear voice transmission in high-noise environments.
Yes. The Jabra BIZ 2400 II Mono 3-1 NC WB Balance is certified for Microsoft Teams, Skype for Business, and Cisco, and works seamlessly with any UC platform via its standard 3.5 mm, USB or RJ-9 connection options.
This headset is backed by a 3-year manufacturer’s warranty covering defects in materials and workmanship for reliable, long-term performance.
You’ll experience wideband audio (up to 6,800 Hz) for natural, crystal-clear sound, plus an integrated DSP chipset to optimize speech clarity and protect against acoustic shock.