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Poly 77Z31AA

Voyager 4320 Bluetooth Stereo Headset with BT700 USB-C Dongle and Charging Stand

Regular price $155.00

Highlights:

  • Bluetooth 5.2 with multipoint lets you switch between two active devices easily
  • Up to 24 hours talk time and 47 hours listening time for all-day use
  • Quick charge gives 10 hours talk time from just 15 minutes charging
  • Dual-mic boom with Acoustic Fence cuts background noise for clear calls
  • Includes BT700 USB-C dongle for stable wireless range up to 50 meters

Every order includes:

  • Fast and secure shipping
  • Free 30-days returns
  • Manufacturer warranty
  • Lifetime customer support

Description

Overview

The Poly 77Z31AA is a Bluetooth stereo headset designed to provide clear digital calls and quality music streaming for professionals who need reliable audio on the move. It features Bluetooth 5.2 connectivity with multipoint support, allowing seamless switching between two active devices and remembering up to eight paired devices. With up to 24 hours of talk time and 47 hours of listening time, this headset supports long workdays and extended use without frequent recharging.

Its flexible boom with dual microphones and Acoustic Fence technology isolates your voice while reducing background noise, making it ideal for busy office environments or remote workspaces. The on-ear design with 32 mm drivers delivers balanced stereo sound suitable for both calls and media playback.

Key features
  • Dual-microphone boom with Acoustic Fence technology to focus on your voice and minimize surrounding noise
  • Bluetooth 5.2 with multipoint support for connecting and switching between two devices effortlessly
  • Long battery life offering up to 24 hours of talk time and 47 hours of listening time for all-day use
  • Quick charge capability provides 10 hours of talk time from just 15 minutes of charging
  • Includes BT700 USB-C dongle for a stable wireless connection up to 50 meters, plus USB-A adapter and charging stand
  • On-ear stereo design with 32 mm drivers for clear and balanced audio during calls and media playback
  • Compatible with Poly Lens software for easy device management, monitoring, and firmware updates
Key specs
  • Bluetooth version: 5.2
  • Multipoint support: 2 active devices, 8 paired devices
  • Battery life: up to 24 hours talk time, 47 hours listening time
  • Quick charge: 10 hours talk time from 15 minutes charging
  • Driver size: 32 mm
  • Wireless range with BT700 dongle: up to 50 meters
  • Included accessories: BT700 USB-C dongle, USB-A adapter, charging stand, USB-C cable
Connectivity and compatibility

This headset connects wirelessly via Bluetooth 5.2, supporting multipoint connections to keep you linked to both your laptop and smartphone without interruption. The included BT700 USB-C dongle ensures a reliable connection with low latency and extended range up to 50 meters, ideal for office or home setups. It also comes with a USB-A adapter to cover different USB port types.

Optimized for popular communication platforms such as Zoom and Microsoft Teams, the headset integrates smoothly into professional workflows. Poly Lens software compatibility allows for straightforward device management and firmware updates, keeping your headset up to date and performing at its best.

Ideal uses and environments

This headset is well suited for mobile professionals who require dependable audio quality and flexibility across multiple devices. It works well in open office spaces, remote work environments, and on the go, where background noise can be a challenge. The long battery life and quick charge feature support extended use during busy days, while the stereo sound enhances both calls and media listening during breaks.

Its design and features make it a strong choice for users who juggle calls and media on laptops, smartphones, or tablets, providing clear communication and comfortable wear throughout the day.

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Shipping and delivery

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns and refunds

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

Product warranty

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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