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Black over-ear stereo headset with flexible boom mic and USB-C Bluetooth adapter

POLY

POLY Voyager 4320 UC V4320 C Bluetooth 5.2 Headset

SKU CH-3946-A1Y6S

A dual-ear Bluetooth 5.2 headset with noise-cancelling boom mic, 24-hour talk time and 50 m wireless range via included USB-C adapter

  • ColorBlack
  • Wireless TypeBluetooth
  • Power Sourcelithium_ion
  • Operating Time24 hour
  • Noise Cancellingsound_isolation
  • ConnectorUSB
  • Clear calls with dual-mic Acoustic Fence noise cancellation
  • Bluetooth 5.2 connects PC via BT700 adapter and phone directly
  • 24 hour talk time wireless or wired USB audio mode
  • Lightweight 162 gram over-ear design for all-day comfort
  • 50 metre wireless range with included BT700 USB-C adapter

Affordable hybrid-worker headset

The Poly Voyager 4320 UC is a lightweight stereo headset built for professionals who split time between home and office. It connects to a PC or Mac with the included BT700 USB-C adapter and to a phone via Bluetooth 5.2. Dual-microphone Acoustic Fence technology blocks surrounding noise so callers hear only your voice. The design targets all-day comfort with an adjustable padded headband and passive sound isolation.

Thermals noise and power

The headset runs on a lithium-ion battery rated for 24 hours of wireless talk time on a single charge. Passive sound isolation reduces ambient sound without active circuitry that would add heat or drain power. Wireless range extends up to 50 m or 164 ft with the supplied BT700 adapter, keeping the link stable while you move around. A USB cable allows wired audio operation when the battery is depleted.

Bundled accessories and software impact

The package includes the BT700 USB-C Bluetooth adapter and a charging stand, removing the need for separate dongles or cables. The adapter enables plug-and-play connection on Intel Evo laptops and standard USB ports on other computers. Certified compatibility with Teams and Zoom means call controls and mute sync work natively in those apps. Wired USB audio mode provides a fallback connection without using Bluetooth bandwidth.

Highlights

  • Clear calls with dual-mic Acoustic Fence noise cancellation
  • Bluetooth 5.2 connects PC via BT700 adapter and phone directly
  • 24 hour talk time wireless or wired USB audio mode
  • Lightweight 162 gram over-ear design for all-day comfort
  • 50 metre wireless range with included BT700 USB-C adapter

Specifications

BrandPoly
Series4300
ModelVOYAGER 4320 UC V4320 C
Part Number218478-01
ColorBlack
Wireless TypeBluetooth
Power Sourcelithium_ion
Operating Time24 hour
Noise Cancellingsound_isolation
ConnectorUSB
Ear CouplingOver Ear
Weight162 grams
Featuressound_isolation

Questions about this item

How do I set up the BT700 USB-C adapter with my PC and what is the common pairing mistake?

Plug the BT700 adapter into a USB-C port, then power on the headset; it pairs automatically. The step users miss is skipping the adapter and trying to pair directly to the laptop's built-in Bluetooth instead.

Which parts of the Voyager 4320 UC will need replacement after daily use?

The ear cushions and the lithium-ion battery are the wear items; cushions can be swapped when they flatten, and the battery lasts for roughly 24 hours of talk time per charge before capacity fades.

What range limit appears first when I walk away from my desk during a call?

The Bluetooth 5.2 link drops at about 50 metres or 164 feet from the BT700 adapter, so that wireless boundary is the first constraint you hit under sustained use.

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