

Plantronics Voyager 4320 Wireless Headset
We designed the Voyager 4320 for professionals who demand flexibility without compromise. This dual-connectivity headset pairs simultaneously with your computer via USB adapter and your smartphone over Bluetooth, so you never miss a call while switching between devices.
Our advanced stereo design delivers rich audio for music and calls alike, while intelligent noise cancellation blocks out distractions in busy home offices or open workspaces. The cushioned headband and memory-foam ear pads keep you comfortable through back-to-back meetings, and the boom microphone captures your voice clearly while filtering background chatter.
With up to 24 hours of talk time on a single charge, the Voyager 4320 keeps pace with your longest workdays. Dynamic mute alert tells you when you’re speaking while muted, and our signature SoundGuard technology protects against audio spikes that can damage hearing over time.
- Dual connectivity: USB-A adapter + Bluetooth 5.1 for two devices simultaneously
- 24-hour talk time / 20-day standby on full charge
- 40mm stereo speakers with advanced active noise cancellation
- Memory-foam ear cushions with leatherette finish
- 180-degree rotating boom microphone with wind noise reduction
Dual-device connectivity for hybrid workflows

The plantronics voyager 4320 solves the juggling act that hybrid workers face every day. Our dual-connectivity system pairs the included USB-A dongle with your laptop while maintaining a separate Bluetooth connection to your mobile phone, letting you take calls from either device without unplugging or re-pairing.
When a mobile call comes in during a video meeting, the headset automatically alerts you with a ringtone in your ear, and a single button press switches the active line. We engineered this flexibility into the same platform that powers our full lineup of professional headsets, so IT teams already familiar with Plantronics deployment will recognize the Bluetooth Manager software and centralized firmware updates.
Noise cancellation that adapts to your environment

We built the Voyager 4320 with active noise cancellation that continuously samples ambient sound and generates inverse waveforms to cancel distractions before they reach your ears. Whether you’re working from a coffee shop or a shared workspace, the system adjusts in real time to block hums, conversations, and HVAC noise.
The boom microphone features our triple-microphone array with advanced digital signal processing. Two mics capture your voice while a third samples background noise, allowing the headset to subtract everything that isn’t you. In testing, we measured a 20 dB reduction in keyboard clatter and barking dogs during calls, so your colleagues hear you clearly even when your home office isn’t perfectly quiet.
All-day comfort and battery life

The plantronics voyager 4320 weighs just 5.8 ounces, distributed across a padded steel headband that adjusts to fit head sizes from petite to extra-large. We wrapped the ear cups in memory foam that conforms to the shape of your ears, then covered them in soft leatherette that breathes better than synthetic leather while staying cool during extended wear.
Our engineers tested comfort in eight-hour wearing sessions with participants of different ages and head shapes. Over 90 percent reported no pressure points or fatigue, even when wearing glasses. The pivoting ear cups rotate inward when you’re not wearing the headset, so it stores flat in a laptop bag without taking up extra space.
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What people are saying
Common questions about the Voyager 4320
Yes, the Voyager 4320 maintains simultaneous connections to two devices using different wireless protocols. The included USB-A adapter connects to your computer, while the Bluetooth 5.1 radio pairs with your smartphone or tablet. You can receive calls from either device without switching modes or re-pairing, and the headset automatically pauses one call when you answer the other.
A full charge provides up to 24 hours of talk time or 20 days of standby time. Actual battery life varies depending on volume levels, active noise cancellation usage, and whether you’re connected to one or two devices. If you need a quick charge, plugging in for 15 minutes delivers approximately four hours of talk time.
The Voyager 4320 is certified for Microsoft Teams and Zoom, as well as optimized for Google Meet, Cisco Webex, and RingCentral. When you connect the USB adapter, your UC platform recognizes the headset automatically and routes audio without additional configuration. Inline controls let you answer, end, and mute calls directly from the headset, and those commands sync with your software’s call controls.
The Class 1 Bluetooth radio provides a wireless range of up to 98 feet from your paired device in open space. Actual range depends on obstacles like walls and interference from other wireless devices. The USB adapter uses a 2.4 GHz connection with similar range, so you can move freely around your workspace without audio dropouts or connection loss.
We designed the Voyager 4320 specifically for extended wearing sessions. The headset weighs 5.8 ounces and features memory-foam ear cushions covered in breathable leatherette, which conforms to your ears without building up heat. The padded headband adjusts to fit a wide range of head sizes, and the pivoting ear cups distribute pressure evenly. In our testing, over 90 percent of participants reported no discomfort during eight-hour wearing periods.
The standard package includes a BT600 USB-A adapter, but we offer the same adapter with a USB-C connector as a separate accessory. The headset firmware and functionality remain identical across both adapter types, so you can swap adapters based on your computer’s available ports without reconfiguring settings or losing features.
Yes, the Voyager 4320 includes dynamic mute alert technology. When you mute the microphone and then start speaking, the headset detects your voice and plays a gentle reminder tone in your ear, letting you know that your microphone is off. This prevents the common problem of talking for extended periods without realizing your colleagues can’t hear you.