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Dual-ear QD headset with excellent wideband audio clarity.
2389-820-109
BIZ 2300 DUO NC WB QD
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2389-820-109
BIZ 2300 DUO NC WB QD
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2389-820-109-BIZ 2300 DUO NC WB QD is a professional-grade binaural headset designed for unified communications and business conferencing environments. This device features a dual-ear, on-ear headphone configuration paired with a high-performance noise-cancelling condenser microphone, ensuring crystal-clear audio capture and playback. Supporting standard Quick Disconnect (QD) and wideband (WB) capability, it allows seamless integration with various desk phones and softphone applications via QD-compatible cables or adapters. The headset is engineered to deliver natural-sounding voice audio through an optimized frequency response range of 150 Hz – 6.8 kHz, ideal for clear speech intelligibility during calls and conferences.
With plug-and-play compatibility, the 2389-820-109-BIZ 2300 DUO NC WB QD is suited for deployment in boardrooms, open offices, call centers, and remote meeting spaces. The device’s wideband audio and advanced digital signal processing (DSP), including acoustic echo cancellation (AEC) and background noise suppression, ensure superior communication quality even in noisy environments. Its robust, lightweight design offers comfort for extended use, making it ideal for unified communications, contact centers, large-scale collaboration systems, and enterprise UC deployments that demand reliable, consistent audio performance.
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 2389-820-109 |  7599-838-199 |  1519-0154 |  2393-823-189 |  4993-829-209 | |
|---|---|---|---|---|---|
| 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 | N/A | N/A | N/A |
| Form Factor | On-Ear / Headband | Portable | Desktop | Desktop | Desktop |
| Use Case | Unified Communications / Conference Room / Call Center / Office | Unified Communications | Unified Communications / Conference Room / Office / Call Center | Unified Communications | Unified Communications |
| Channel Configuration | Stereo | Stereo | Stereo | Mono | Mono |
| Connectivity | Quick Disconnect (QD) | USB / Bluetooth | QD (Quick Disconnect) | Quick Disconnect (QD) | USB |
| Input Types | Quick Disconnect (QD) | USB / Bluetooth | QD | N/A | USB |
| Output Types | Quick Disconnect (QD) | 3.5mm / Bluetooth | QD | Quick Disconnect (QD) | USB |
| Power Output (if applicable) | N/A | N/A | N/A | N/A | N/A |
| Power Source | N/A | Battery / USB-Powered | N/A | N/A | USB-Powered |
| Frequency Response | 150 Hz – 6.8 kHz | 20 Hz – 20 kHz (music), 150 Hz – 6.8 kHz (calls) | 150 Hz – 6.8 kHz | 150 Hz – 6.8 kHz | 150 Hz – 7 kHz (Mic), 20 Hz – 20 kHz (Speaker) |
| Signal Processing | DSP / AEC / Noise Suppression | DSP / AEC / Noise Suppression / AGC | DSP / AEC / Noise Suppression | DSP / AEC / Noise Suppression | DSP |
| Audio Codecs Supported | N/A | SBC | N/A | N/A | N/A |
| Mounting Option | N/A | N/A | N/A | N/A | N/A |
| Control Interface | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons | Physical Buttons |
| Wireless Support | No | Bluetooth | No | No | No |
| Product Name | Jabra BIZ 2300 DUO NC WB QD (2389-820-109) | Jabra Evolve 75 UC Stereo Headset Head-band Bluetooth Black (7599-838-199) | 1519-0154-Biz 1500 Duo QD - Headset - Head-band - Office/Call center - Black - Binaural - 0.95 m | Jabra BIZ 2300 Mono QD | Jabra Evolve 20 UC Mono (4993-829-209) |
| Height | 6.8 | 6.89 | N/A | 6.73 | 6.3 |
| Width | 7.0 | 7.09 | N/A | 5.59 | 6.89 |
| Depth | 2.0 | 2.32 | N/A | 2.20 | 2.36 |
| Weight | 2.6 | 0.42 | N/A | 0.117 | 0.22 |
Dual-ear QD headset with excellent wideband audio clarity.
Durable construction handling heavy call volumes effectively.
Reliable desk phone compatibility with strong microphone pickup.
Comfortable design for extended contact center shifts.
Professional-grade performance in busy office settings.
The BIZ 2300 DUO NC WB QD is a professional dual-ear noise-cancelling headset with wideband audio and a quick-disconnect cable, designed for clear, reliable communication in office and call-center environments.
NC means Noise Cancelling, WB stands for Wideband audio, and QD denotes Quick Disconnect cable, allowing uninterrupted calls and easy headset changes without losing the connection.
The headset’s precision-engineered noise-cancelling microphone uses dual-membrane technology to filter out background noise and ensure your voice remains crystal-clear on every call.
Wideband audio delivers an extended frequency range (150 Hz–6.8 kHz) for natural, intelligible voice transmission, reducing listener fatigue and improving conversational clarity.