HP Poly Voyager 4320 USB-A Wireless Stereo Headset | BT700 Adapter | 24-Hour Talk Time | Acoustic Fence Noise-Cancelling Mic | SoundGuard Digital | UC Optimized | 2-Year Warranty | 76U49AA
The Poly Voyager 4320 USB-A Wireless Stereo Headset (76U49AA) is a professional wireless headset designed for Unified Communications, office environments, remote workers and business users. It combines stereo Bluetooth audio, an included BT700 USB-A Bluetooth adapter, Acoustic Fence noise-cancelling technology and up to 24 hours of talk time in a comfortable over-the-head design.
The headset features dual noise-cancelling microphones with Acoustic Fence technology to help reduce background noise and focus conversations on the user’s voice. The 32mm stereo speakers provide a 20Hz–20kHz frequency range, while SoundGuard Digital provides acoustic protection for professional communication environments.
The included BT700 USB-A Bluetooth adapter provides wireless connectivity to compatible PCs, while Bluetooth connectivity supports smartphones and other compatible mobile devices. The headset also supports multiple paired devices and includes controls for calls, mute, volume, power and Bluetooth pairing.
The 76U49AA configuration provides up to 24 hours of talk time with the online indicator turned off, up to 18 hours with the indicator enabled and up to 47 hours of music playback. It supports Windows 11, Windows 10, macOS, Android and iOS and works with Poly Lens for supported device management.
- Poly Voyager 4320 USB-A Wireless Stereo Headset
- SKU / Part Number: 76U49AA
- Voyager 4300 UC Series
- Unified Communications optimized
- Wireless stereo on-ear headset
- Bluetooth connectivity
- BT700 USB-A Bluetooth adapter included
- Bluetooth 5.1
- Up to 24 hours talk time
- Up to 18 hours talk time with online indicator enabled
- Up to 47 hours music time
- Up to 50 days standby time
- Dual noise-cancelling microphones
- Acoustic Fence technology
- 100Hz–6.8kHz microphone bandwidth
- 32mm stereo speakers
- 20Hz–20kHz speaker bandwidth
- SoundGuard Digital acoustic protection
- Up to 50m wireless range
- Up to 91m with Voyager Office base
- Up to 8 paired devices
- Call answer/end, mute and volume controls
- Power and Bluetooth pairing controls
- Rechargeable lithium-ion battery
- Less than 1.6-hour charging time
- 1.5m cable
- Windows 11, Windows 10, macOS, Android and iOS compatible
- Poly Lens compatible
- Black finish
- 2-year limited warranty
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Poly Voyager 4320 USB-A Wireless Stereo Headset – 76U49AA
The Poly Voyager 4320 USB-A Wireless Stereo Headset (76U49AA) is a professional wireless headset from the Voyager 4300 UC Series, designed for Unified Communications, office environments, remote workers and business users. It combines stereo Bluetooth audio, an included BT700 USB-A Bluetooth adapter, Acoustic Fence noise-cancelling technology and extended battery life in a comfortable over-the-head design.
The headset provides Bluetooth wireless connectivity together with the included BT700 USB-A Bluetooth adapter for connection to compatible computers. It can also connect to compatible smartphones and mobile devices through Bluetooth, allowing users to move between PC and mobile communications without changing headsets.
The included BT700 Bluetooth USB-A adapter provides a convenient wireless connection for compatible desktop and notebook computers. The headset supports Bluetooth 5.1 and can remember up to eight paired devices, providing flexibility for users who regularly work across multiple devices.
For professional voice communication, the headset uses dual noise-cancelling microphones with Acoustic Fence technology. The microphone system is designed to reduce unwanted background noise and help focus the conversation on the user’s voice. The microphone bandwidth is 100Hz–6.8kHz, providing a voice-focused frequency range for business calls.
The stereo audio system uses 32mm speakers with a 20Hz–20kHz speaker bandwidth. The binaural on-ear design delivers audio to both ears, making the headset suitable for voice calls, collaboration and general multimedia use in office and remote-work environments.
For hearing protection, the headset incorporates SoundGuard Digital acoustic protection. The technology is designed to protect users against excessive acoustic levels and support safer headset use during extended periods of professional communication.
The Voyager 4320 provides up to 24 hours of talk time with the online indicator turned off. Talk time is up to 18 hours with the online indicator enabled, while music playback can reach up to 47 hours. Standby time can reach up to 50 days, and the rechargeable lithium-ion battery requires less than 1.6 hours to charge.
The headset includes an on-call indicator on the ear cup that provides a visual cue to people nearby when the user is on a call. This can be particularly useful in shared offices and open-plan workspaces where users need to indicate that they are currently engaged in a conversation.
Integrated user controls provide access to power on/off, call answer/end, mute, volume adjustment and Bluetooth pairing. The headset can also be used in corded USB mode, allowing users to continue using audio over USB while extending practical battery usage.
The wireless range is specified at up to 50 metres / 164 feet with the included BT700 USB adapter. When used with a compatible Voyager Office base, the range can extend up to 91 metres. Actual wireless performance can vary depending on environmental conditions and connected equipment.
The Poly Voyager 4320 UC supports Windows 11, Windows 10, macOS, Android and iOS. Poly Lens management software provides supported device management and configuration capabilities, making the headset suitable for professional deployments.
The 76U49AA configuration includes the wireless headset, BT700 Bluetooth USB adapter, USB Type-A charging cable, travel pouch and quick start guide. The headset has a black finish, measures approximately 15.5 × 6.7 × 18.2cm and weighs approximately 122g.
The Poly Voyager 4320 USB-A Wireless Stereo Headset is covered by a Poly standard two-year limited warranty.
Key Features
- Poly Voyager 4320 USB-A Wireless Stereo Headset
- Part Number / SKU: 76U49AA
- Voyager 4300 UC Series
- Unified Communications optimized
- Wireless stereo on-ear design
- Bluetooth connectivity
- Included BT700 USB-A Bluetooth adapter
- Bluetooth 5.1
- Up to 24 hours talk time with online indicator off
- Up to 18 hours talk time with online indicator on
- Up to 47 hours music time
- Up to 50 days standby time
- Rechargeable lithium-ion battery
- Less than 1.6-hour charging time
- Dual noise-cancelling microphones
- Acoustic Fence technology
- 100Hz–6.8kHz microphone bandwidth
- 32mm stereo speakers
- 20Hz–20kHz speaker bandwidth
- SoundGuard Digital acoustic protection
- Up to 50m / 164ft wireless range
- Up to 91m with Voyager Office base
- Up to 8 paired devices
- On-call indicator
- Call answer/end control
- Mute control
- Volume +/- control
- Power on/off control
- Bluetooth pairing control
- Corded USB audio mode
- Windows 11 and Windows 10 compatible
- macOS compatible
- Android and iOS compatible
- Poly Lens compatible
- Black finish
- 2-year limited warranty
TECHNICAL SPECIFICATIONS
| Brand | HP |
| Product | Poly Voyager 4320 USB-A Headset + BT700 Dongle |
| SKU / Part Number | 76U49AA |
| Series | Voyager 4300 UC |
| Product Type | Wireless Stereo Headset |
| Audio Configuration | Stereo / Binaural |
| Wearing Style | On-ear / Over-the-head |
| Connectivity | Bluetooth, USB-A BT700 Adapter |
| Bluetooth Version | Bluetooth 5.1 |
| Wireless Range | Up to 50m; up to 91m with Voyager Office base |
| Microphones | 2 |
| Microphone Type | Noise Cancelling |
| Microphone Technology | Acoustic Fence |
| Microphone Bandwidth | 100Hz–6.8kHz |
| Speaker Size | 32mm |
| Speaker Bandwidth | 20Hz–20kHz |
| Acoustic Protection | SoundGuard Digital |
| Talk Time | Up to 24 hours with online indicator off |
| Talk Time with Online Indicator | Up to 18 hours |
| Music Time | Up to 47 hours |
| Standby Time | Up to 50 days |
| Battery Type | Rechargeable Lithium-ion |
| Charge Time | Less than 1.6 hours |
| Cable Length | 1.5m |
| Paired Devices | Up to 8 |
| User Controls | Power On/Off, Call Answer/End, Mute, Volume +/-, Pairing |
| Operating Systems | Windows 11, Windows 10, macOS, Android, iOS |
| Management Software | Poly Lens |
| Color | Black |
| Dimensions | 15.5 × 6.7 × 18.2cm |
| Weight | 0.122kg / 122g |
| What’s in the Box | Quick Start Guide, Travel Pouch, Wireless Headset, USB Type-A Charging Cable, BT700 Bluetooth USB Adapter |
| Warranty | 2-Year Limited Warranty |
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