Jabra Biz 2400 II Mono 3-in-1, UNC

Jabra Biz 2400 II Mono 3-in-1, UNC

The Jabra Biz 2400 II Mono 3-in-1 is a professional wired headset that adapts to any device – desk phone (RJ9), PC (USB), or mobile (3.5mm). The “UNC” designation stands for Unified Communications certification (UC), ensuring seamless integration with Microsoft Teams, Zoom, Cisco Webex, and other softphones. The mono (single‑ear) design keeps you aware of your surroundings, making it perfect for reception desks, call centers, and home offices. With a noise‑canceling microphone, wideband audio (150Hz–6.8kHz), and Quick Disconnect (QD), this headset delivers crystal‑clear calls and all‑day comfort. The “II” version offers improved speakers and durability over the original Biz 2400.

How It Works

The headset includes three interchangeable cables: an RJ9 coiled cord for desk phones, a USB‑A cord for PCs (plug‑and‑play, UC certified), and a 3.5mm cord for smartphones and tablets. The Quick Disconnect (QD) lets you swap cables without removing the headset. The noise‑canceling microphone boom rotates 270° for left‑ or right‑side wear and reduces background noise (up to 20dB). The wideband speaker delivers natural, rich audio for calls. The inline control pod (on USB and 3.5mm cables) gives you volume, mute, and call answer/end. For a complete hands‑free setup, explore other corded headsets available at FindHeadsets.

Compatibility & Design

The Jabra Biz 2400 II Mono 3-in-1 UC works with desk phones (RJ9 handset port), PCs/Macs via USB, and smartphones/tablets via 3.5mm jack. It is UC certified for Microsoft Teams, Zoom, Google Meet, Cisco Webex, and other softphones when used via USB. The headband is adjustable with soft leatherette padding, and the ear cushion is memory foam covered in leatherette – replaceable. Wideband audio (150Hz–6.8kHz) provides superior voice clarity compared to standard narrowband headsets. The headset is black, weighs 3.5 ounces, and the QD connector is gold‑plated. The “II” version features upgraded speakers and enhanced durability.

Why Choose This Product

The Biz 2400 II Mono 3-in-1 is the ultimate flexible headset for professionals who use multiple devices. Instead of buying separate headsets for your desk phone, PC, and mobile, one headset does it all. The noise‑canceling microphone is exceptional – callers hear only you, not office chatter or keyboard clicks. Wideband audio makes conversations sound natural and rich, reducing listener fatigue. The Quick Disconnect adds convenience when switching between cables or stepping away from your desk. UC certification ensures reliable call control with all major softphones. For IT managers, this headset simplifies inventory – one model covers all user needs. The replaceable ear cushion extends product life.