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HP Poly 77Y99AA Poly Voyager 4320 UC Stereo Headset - Bluetooth 5.1 - 24-Hour Talk Time - Noise Cancelling - Microsoft Teams & Zoom Certified - USB-A
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This headset operates on Bluetooth 5.1 with support for A2DP, AVRCP, HFP, and HSP profiles, enabling seamless pairing with up to two devices simultaneously. The wireless operating distance extends to 298.6 feet (91 meters), offering substantial mobility within office environments.
Power management features include a 24-hour talk time battery with fast charging capability—15 minutes of charging provides extended usage. The headset supports both cable and charging stand charging methods via USB Type-A interfaces.
Relevant factors for this section include Connectivity Technology, Wireless Technology, Bluetooth Standard, Battery Chemistry. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Voyager 4320 UC stands out with its certified performance for major collaboration platforms and advanced audio technologies designed for professional use.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Certified Collaboration, Intelligent Audio Features.
Certified Collaboration
Officially certified for Microsoft Teams and Zoom, ensuring optimized performance and compatibility with these enterprise communication platforms.
- Guaranteed compatibility with Teams and Zoom clients
- Optimized audio processing for conference calls
Intelligent Audio Features
Incorporates Poly's signature technologies for superior audio quality and user experience.
- SoundGuard Technology protects hearing from sudden volume spikes
- Dynamic EQ automatically adjusts audio based on content
- Acoustic Fence Technology focuses on your voice while blocking ambient noise
Deployment / Use Cases
The Voyager 4320 UC is designed for professionals who require reliable audio communication across multiple environments and devices. Its hybrid wired/wireless connectivity makes it adaptable to various workplace configurations.
In office settings, the charging stand provides a dedicated docking station while maintaining Bluetooth connectivity to computers and mobile devices. For remote workers, the lightweight design and travel pouch enable easy transportation between home and office locations.
Enterprise Communications
Ideal for contact centers, corporate offices, and remote teams requiring certified UC performance.
- Supports desk phones, softphones, and mobile devices
- Compatible with PC, Mac, smartphones, and tablets
Mobile Productivity
Perfect for professionals who move between meetings, workspaces, and locations throughout the day.
- Pairs with both computer and smartphone simultaneously
- Includes travel pouch for protection during transport
Physical Profile
The supra-aural (on-ear) design features adjustable headband and cushioned ear cups for comfortable extended wear. The black finish presents a professional appearance suitable for business environments. Dimensions measure 7.17" (182 mm) height × 6.10" (155 mm) width × 2.64" (67 mm) depth, with a lightweight construction at 5.71 ounces (162 grams).
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 7.17" (182 mm), 6.10" (155 mm), 2.64" (67 mm), 5.71 oz (162 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 6.10" (155 mm)
- Depth
- 2.64" (67 mm)
- Height
- 7.17" (182 mm)
- Weight
- 5.71 oz (162 g)
- Length
- 4.9 ft (1.50 m)
What's in the Box
The package includes all necessary components for immediate deployment and ongoing use.
Highlights
- Stereo sound with 20Hz-20kHz frequency response for detailed audio
- Bluetooth 5.1 wireless with 298.6 ft (91 m) operating range
- 24-hour talk time battery with 15-minute fast charging
- Dual noise-cancelling microphones with Acoustic Fence technology
- Microsoft Teams and Zoom certified for optimized performance
- Wired/Wireless connectivity via USB Type-A and Bluetooth
- Supra-aural (on-ear) design with adjustable headband
- Supports Siri and Google Assistant voice commands
- Pairs with up to two devices simultaneously
- Includes charging stand and travel pouch for complete mobility
Specifications
| Specifications | |
|---|---|
| Manufacturer | HP Inc. |
| Manufacturer Part Number | 77Y99AA |
| Brand Name | Poly |
| Product Line | Voyager 4300 UC |
| Product Model | 4320 |
| Product Name | Voyager 4320 UC Stereo USB-A Headset + BT700 USB-A Adapter + Charging Stand |
| Packing | Box |
| Product Type | Headset |
| Technical Information | |
| Connectivity Technology | Wired/Wireless |
| Wireless Technology | Bluetooth |
| Bluetooth Standard | Bluetooth 5.1 |
| Cable Length | 4.9 ft (1.50 m) |
| Wireless Operating Distance | 298.6 ft (91 m) |
| Sound Mode | Stereo |
| Minimum Frequency Response | 20 Hz |
| Maximum Frequency Response | 20 kHz |
| Noise Canceling | Yes |
| Features | SoundGuard Technology,Dynamic EQ,Unified Communication,Voice Assistant,Acoustic Fence Technology,LED Call Indicator,Flexible,Multi Connector |
| Bluetooth Profiles | A2DP,AVRCP,HFP,HSP |
| Virtual Assistant Supported | Siri,Google Assistant |
| Microsoft Teams Certification | Yes |
| Zoom Certification | Yes |
| Charging Method | Cable,Charging Stand |
| Fast Charging | Yes |
| Maximum Number of Paired Devices Supported | 2 |
| Battery Information | |
| Battery Chemistry | Lithium Ion (Li-Ion) |
| Battery Talk Time | 24 Hour |
| Battery Rechargeable | Yes |
| Fast Charging Time | 15 Minute |
| Earpiece | |
| Earpiece Design | Over-the-head,On-ear |
| Earpiece Type | Binaural |
| Driver Size | 1.26" (32 mm) |
| Microphone | |
| Microphone Design | Boom |
| Microphone Technology | Electret Condenser,MEMS Technology,Noise Cancelling |
| Number of Microphones | 2 |
| Interfaces/Ports | |
| Host Interface | USB Type A |
| Charging Interface | USB Type-A |
| Physical Characteristics | |
| Color Family | Black |
| Color | Black |
| Form Factor | Supra-aural |
| Height | 7.17" (182 mm) |
| Width | 6.10" (155 mm) |
| Depth | 2.64" (67 mm) |
| Weight (Approximate) | 5.71 oz (162 g) |
| Miscellaneous | |
| Package Contents | Voyager 4320 UC Stereo USB-A Headset + BT700 USB-A Adapter + Charging Stand Quick Start Guide Travel Pouch Charging Stand USB Type-A Charging Cable BT700 Bluetooth® USB Adapter |
| Application/Usage | Smartphone,Office,Music,Home,Desk Phone,Phone,Telephone,Mobile Device,Business |
| Country of Origin | China/Mexico |
| TCO Certified | Yes |
| Operating System Platform | Windows,macOS,Android,iOS |
| Platform Supported | PC,Mac |
| Charger Included | Yes |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What type of connectivity does this headset support?
The Poly Voyager 4320 UC supports both wired and wireless connectivity options. For wireless operation, it uses Bluetooth 5.1 technology with a range of 298.6 feet (91 meters). For wired connections, it includes a USB Type-A interface with a 4.9-foot (1.50-meter) cable. This dual-connectivity approach provides flexibility for different workplace setups and device compatibility.
Is this headset certified for Microsoft Teams and Zoom?
Yes, the Voyager 4320 UC is officially certified for both Microsoft Teams and Zoom. These certifications ensure optimized audio performance, proper functionality of call controls, and guaranteed compatibility with the respective software clients. This makes the headset particularly suitable for enterprise environments where these platforms are standard for unified communications.
How long does the battery last and how quickly does it charge?
The headset features a rechargeable lithium-ion battery that provides up to 24 hours of talk time on a full charge. It supports fast charging technology that delivers extended usage from just 15 minutes of charging. The headset can be charged either via the included USB Type-A cable or through the dedicated charging stand included in the package.
What noise cancellation features does this headset include?
The Voyager 4320 UC incorporates multiple noise cancellation technologies. It features dual microphones with electret condenser and MEMS technology that actively cancel background noise. Additionally, Poly's Acoustic Fence Technology uses beamforming to focus on the user's voice while minimizing ambient sounds from the sides and rear, ensuring clear voice transmission in noisy environments.
What devices and operating systems are compatible with this headset?
This headset is compatible with a wide range of devices and operating systems. It supports Windows, macOS, Android, and iOS platforms. The headset works with PCs, Macs, smartphones, tablets, and desk phones. It can pair with up to two devices simultaneously via Bluetooth, allowing users to switch between a computer and mobile device seamlessly.
What is included in the package with this headset?
The complete package includes the Voyager 4320 UC Stereo Headset, BT700 Bluetooth USB Adapter, charging stand, USB Type-A charging cable, quick start guide, and a travel pouch. The charging stand serves as both a docking station and charging solution, while the travel pouch protects the headset during transport. The BT700 adapter enables Bluetooth connectivity for devices without built-in Bluetooth capability.
| Qty | Price | Available |
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