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2499-829-309
Biz 2400 II USB Duo CC - Headset - Head-band - Office/Call c...
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
2499-829-309-Biz 2400 II USB Duo CC - Headset - Head-band - Office/Call center - Black - Silver - Binaural - China is a professional binaural headset designed specifically for use in demanding office and call center environments. This audio device combines both speaker and microphone functionalities in a head-band form factor, ensuring exceptional audio clarity for unified communications and collaboration applications. Its dual speakers deliver stereo sound while the noise-cancelling condenser microphone ensures precise voice pickup, making it an ideal solution for high-volume call centers and UC deployments.
This headset features a USB connection for easy integration with PC-based communication systems, supporting plug-and-play operation without the need for extra drivers. The Jabra Biz 2400 II USB Duo CC offers a frequency response of 80 Hz – 18 kHz for speakers and 100 Hz – 10 kHz for the microphone, supporting premium wideband audio and advanced noise cancellation for optimal performance. It is compatible with leading UC platforms and is suitable for use in boardrooms, meeting spaces, and remote work scenarios, where reliable connectivity and superior comfort are essential.
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| 2499-829-309 |  4999-823-189 |  14208-18 |  26599-989-998 |  26599-989-899 | |
|---|---|---|---|---|---|
| Product Type | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment | Audio Equipment |
| Audio Device Type | Headset | Headset | Conference Audio Hub | Headset | Headset |
| Form Factor | Portable | Desktop | Desktop | Portable | Portable |
| Use Case | Unified Communications / Conference Room / Call Center / Office | Unified Communications / Conference Room / Office | Unified Communications / Conference Room / Meeting Spaces / UC Deployments | Unified Communications | Unified Communications |
| Channel Configuration | Stereo | Stereo | Stereo | Stereo | Stereo |
| Connectivity | USB | USB-C | USB / 3.5mm | USB, Bluetooth | USB / Bluetooth |
| Input Types | USB | USB-C | 3.5mm / USB | USB, Bluetooth | USB / Bluetooth |
| Output Types | USB | USB-C | 3.5mm / USB | USB, Bluetooth | USB / Bluetooth |
| Power Source | USB-Powered | USB-Powered | USB-Powered | Battery, USB-Powered | Battery / USB-Powered |
| Frequency Response | 80 Hz – 18 kHz (Speaker), 100 Hz – 10 kHz (Microphone) | 150 Hz – 7 kHz | 150 Hz – 7 kHz | 20 Hz – 20 kHz | 20 Hz – 20 kHz |
| Signal Processing | DSP / Noise Suppression / AEC | DSP / Noise Suppression | DSP | DSP, Noise Suppression | DSP / AEC |
| Mounting Option | Desktop | Desktop | Desktop | Desktop | Desktop |
| Control Interface | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons |
| Wireless Support | No | No | No | Bluetooth | Bluetooth |
| Product Name | Jabra Biz 2400 II USB Duo CC | Jabra Evolve 20 Stereo MS USB-C | Jabra Evolve 40 USB Link Controller (14208-18) | Jabra Evolve2 65 LINK380A UC Stereo Beige (26599-989-998) | Jabra Evolve2 65 Link380c UC Stereo Black |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Excellent USB stereo headset for contact centers.
Clear dual-ear audio and sturdy design.
Reliable USB connectivity and noise control.
Comfortable for long support shifts.
Professional call quality without distortion.
Great enterprise headset investment.
The Biz 2400 II USB Duo CC features a USB-A connection for direct plug-and-play integration with Windows and Mac computers, requiring no additional drivers.
Its precision noise-cancelling microphone filters out background noise down to –26 dB, ensuring crystal-clear speech in busy office and call-center environments.
Yes. It has soft, replaceable leather-feel ear cushions, an adjustable stainless-steel headband and a balanced binaural design for extended comfort.
Yes. The in-line call control unit lets you answer, end and mute calls, as well as adjust volume without touching your computer.
Yes. Its binaural (dual-ear) design delivers true stereo audio for listening to music, training materials and multi-party conferences.
It covers a wideband frequency range of 150–6 800 Hz for voice and 20–20 000 Hz for media playback, delivering professional call clarity and dynamic multimedia sound.
Manufactured with a robust metal headband core, high-grade plastics and reinforced cables, it withstands heavy daily use in professional environments.
Yes. It is certified for Microsoft Teams, Skype for Business and works seamlessly with Zoom, Cisco and other leading soft-phones.
It includes a 2 m USB-A cable plus a 1.5 m in-line control cable, providing 3.5 m total length for flexible workstation placement.
Yes. It comes with a two-year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Gently wipe the ear cushions with a damp cloth and mild detergent. Replace them with genuine manufacturer parts every 6–12 months for hygiene.
Yes. The stainless-steel boom arm rotates 330° and offers precise positioning for optimal voice pickup and left/right ear adaptation.
Its superior noise cancellation, ergonomic design, in-line controls, and UC certifications optimize agent productivity and call quality.
Each headset ships in a retail-ready box with a quick-start guide, warranty card and protective ear-cushion covers for transit safety.
Absolutely. Its wideband audio and stereo design support both professional VoIP calls and rich multimedia playback.
The headset is engineered to Sennheiser’s quality standards and assembled in China under strict quality-control protocols.
United States
