Description
The Poly Voyager 4320 UC wireless headset, launched on August 25, 2021, is a business-grade solution designed for professionals who work from home, in hybrid environments, or in call centers. Compatible with PCs, Macs, and mobile phones via USB or Bluetooth 5.2, it offers seamless device switching, all-day comfort, and pro-quality audio. Its standout feature is the dual-mic Acoustic Fence technology, which ensures crystal-clear calls by blocking background noise-even in the busiest settings.
Clear Conversations, Wherever You Work
The Poly Voyager 4320 UC is built to eliminate distractions and deliver crystal-clear conversations, no matter where you work. Equipped with dual-mic Acoustic Fence technology, it filters out surrounding noise-making your voice the focus, even in busy offices or homes. With up to 24 hours of talk time, seamless Bluetooth 5.2 connectivity, and certified compatibility with Microsoft Teams and Zoom, this lightweight headset is the perfect solution for hybrid professionals who demand reliability and clarity. Whether you’re on your PC, Mac, or mobile, the Voyager 4320 keeps you connected and productive.
Explore the Poly Voyager 4320 UC today and upgrade your call experience.




➜ Wired Mode Option
Battery running low? Simply switch to USB corded mode and keep working without interruption. It charges while in use, offering ultimate flexibility for busy professionals.➜ Impressive Wireless Range
Roam freely with up to 164 feet (50 meters) of wireless range using the included BT700 USB adapter—ideal for multitasking or moving between rooms during calls.➜ Simultaneous Dual-Device Pairing
Seamlessly stay connected to both your computer and mobile device, with support for up to 8 paired devices and 2 active connections at the same time.Product Overview
➜ Mono or Stereo – Your Choice
Available in both mono and stereo (duo) variants, the Voyager 4320 lets you choose the wearing style that suits your workflow—whether you need awareness of your surroundings or immersive focus.
➜ Lightweight, Sleek & All-Day Comfortable
Designed for long hours, the headset features a lightweight build, adjustable padded headband, and memory foam ear cushions, ensuring all-day comfort whether you’re at your desk or on the move.
➜ Dual Connectivity: Bluetooth + USB
Connect wirelessly via Bluetooth 5.2 or plug in with USB-A or USB-C (BT700 adapter included), making it easy to switch between devices like PCs, Macs, and smartphones.
➜Pro-Level Noise Cancellation
Dual-microphone Acoustic Fence technology blocks out background noise, delivering clear voice transmission for professional-quality conversations—even in noisy home or office environments.
➜ Long-Lasting Battery Life
Get up to 24 hours of talk time, 47 hours of listening time, and 50 days standby on a single charge. Fast-charge support gives you 10 hours of talk time in just 15 minutes.
➜ Smart Controls & Indicators
Integrated on-ear call controls, a dedicated Teams button (on select models), on-call indicator light, and dynamic mute alert help you manage calls with ease and professionalism.
Ready to take control of your work calls—wherever you are?
The Poly Voyager 4320 UC delivers the perfect blend of clarity, comfort, and flexibility for today’s hybrid professionals. Whether you’re dealing with noisy environments, juggling devices, or powering through back-to-back meetings, this wireless headset ensures you’re always heard, never interrupted.
Explore the Poly Voyager 4320 UC with Zeal Global—your trusted AV solutions partner in the UAE.
Contact our headset expert on WhatsApp today to learn more or place an order.
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Technical Specifications
Wireless | • Bluetooth v5.2 • Class 1 • Multipoint connectivity, headset connect to two devices at the same time, remembers up to 8 devices • Supported Bluetooth profiles – A2DP, AVRCP, HSP, HFP • Range – Voyager 4300 UC Series: up to 50 meters/164 feet – Voyager 4300 Series with Voyager Office base*: Up to 91 meters/300 feet |
Wired | • Connect to PC via included USB-C cable (1.5 meters/4.9 feet) with audio over USB mode |
Battery | • Battery Capacity: 350 mAH • Battery Type: lithium ion • Talk time: up to 24 hours** • Listening time: up to 47 hours** • Charge time: 1.6 hours for a full charge • Fast Charge: up to 10 hours listening timeafter 15 mins of charge • Standby time: up to 50 days |
Receive Frequency Response | • Dynamic EQ optimized for PC wideband voice telephony up to 7 kHz or for multimedia 20 Hz to 20 kHz |
Hearing Protection | • SoundGuard DIGITAL: G616 support limits the level to 102 dBSPL; Timeweighted average prevents average daily noise exposure from exceeding 85dBA |
Microphone and technology | • Flexible noise canceling boom with dual microphone Acoustic Fence technology • Easy access mute button on microphone boom |
Headset Controls & Lights | • Call answer/end, mute, volume +/-, power ON/OFF/PAIRING • Online Indicator – Two LED indicators on speaker housing shows in a call status |
Headset Base Controls | • Voyager 4300 UC Series with Charge stand: Desk charger only • Voyager Office base*: Desk phone, Softphone selector button. Microsoft Teams button (Microsoft Teams version only) |
Headset Weight | • Voyager 4310 Over-the-head (monaural): 122 g/ .27 lbs • Voyager 4320 Over-the-head (stereo): 162 g / .35 lbs |
Accessories Included | • Voyager 4300 UC Series: Carry case, BT700 USB adapter and charging cable. Charging cable length: 1.5 meters/ 4.9 feet • Voyager 4300 UC Series with Charge stand: Carry case, BT700 USB adapter, charge stand and charging cable. Charging cable length: 1.5 meters/ 4.9 feet |
Manageability | • Cloud: Poly Lens service (some solutions sold separately) • Local (Windows/Mac): Poly Lens Desktop App |
Certification | • Microsoft Teams (Teams version only) • Zoom |
Warranty | • 2-year limited warranty included |
Frequently Asked Questions
Why does call audio quality drop when using the mic?
Can I use the headset without Bluetooth active?
How do I pair to mobile phones and computers simultaneously?
- Computer pairing: Plug in the BT700 USB‑A/C adapter and turn on the headset.
- Mobile pairing: Hold the power switch until red/blue LED flashes, then pair via phone Bluetooth settings.
Why is the mic not working in Microsoft Teams?
The headset is the default mic in Windows Settings.
The device driver is up to date.
Uninstall and reinstall Bluetooth audio drivers if needed. Also, try using the BT700 adapter instead of direct Bluetooth
What’s the wireless range in real world use?
How do I fix echo or sound issues?
Common fixes include:
- Update firmware via Poly or Plantronics Hub software.
- Disable conflicting drivers like Intel Smart Sound Technology from Device Manager.
- Restart the PC, unplug and replug the dongle/headset.