Poly Voyager 4320 UC Stereo Wireless BT Headset w/ Stand USB-A
PRODUCT DESCRIPTION
Poly Voyager 4320 UC Stereo Wireless Bluetooth Headset with Charging Stand USB-A (77Y99AA) - Local Warranty
Poly Voyager 4320 UC Stereo Bluetooth Headset (USB-A)
The Poly Voyager 4320 is a stereo (dual-ear) Bluetooth office headset built for Singapore hybrid teams who move between the office, home and the road. It pairs a flexible noise-cancelling boom with 32 mm speakers, and ships with the Poly BT700 USB-A Bluetooth adapter for a stable, high-quality link to your laptop. HP rates the headset at up to 24 hours of talk time and up to 47 hours of music time on a single charge, with Class 1 wireless range of up to 50 m / 164 ft. This is the UC build, certified for Microsoft Teams Open Office, Zoom and Google Meet. It ships with the desktop charging stand.
Dual-Microphone Acoustic Fence Noise Cancelling Boom
The Voyager 4320 uses a flexible noise-cancelling boom carrying two microphones with Poly Acoustic Fence technology, rated by Poly across a 100 Hz–6.8 kHz voice band. Acoustic Fence builds a virtual barrier around your voice so open-plan chatter, aircon hum and street noise stay out of the call. Poly SoundGuard DIGITAL hearing protection is built in, with G616 support limiting the level to 102 dBSPL — useful for contact-centre and shared-desk deployments where daily exposure matters.
All-Day Battery, Fast Charge and 50 m Wireless Range
A 350 mAh lithium-ion battery delivers up to 24 hours of talk time with the online indicator off (up to 18 hours with it on), up to 47 hours of music time and up to 50 days of standby. A full charge takes about 1.6 hours, and a 15-minute top-up returns up to 10 hours of listening time. Bluetooth Class 1 gives you up to 50 m / 164 ft of range from the BT700 adapter, so you can step away from the desk without dropping the call.
Included Desktop Charging Stand for Hot-Desking
This configuration bundles the Poly charging stand, so the headset has a tidy home on the desk and tops up whenever it is docked — no cable hunting between meetings. For Singapore offices running hot-desk or shared-workstation setups, the stand keeps a shared headset presentable, charged and ready for the next booking.
Ideal For
The Poly Voyager 4320 UC Stereo Wireless Bluetooth Headset with Charging Stand USB-A suits multi-platform UC professionals in Singapore who want a dual-ear wireless headset with a proper noise-cancelling boom, a reliable USB Bluetooth adapter and enough battery for a full working day, plus a desk charging stand.
Poly Voyager 4320 Datasheet — Technical Specifications
General
| Model | Poly Voyager 4320 UC |
| HP Product Name | Poly Voyager 4320 UC Stereo USB-A Headset +BT700 USB-A Adapter +Charging Stand |
| Part Number (Poly / HP SKU) | 218476-01 / 77Y99AA |
| Manufacturer | Poly (HP) |
| Wearing Style | Stereo, dual ear, on-ear with adjustable padded headband |
| Ear Cushions | Memory foam |
| Design | Fold-flat, supplied with travel pouch |
| Colour | Black |
| Dimensions (W x D x H) | 15.5 x 6.7 x 18.2 cm (6.1 x 2.6 x 7.2 in) |
| Weight | 162 g / 0.35 lb |
| Warranty | Local Warranty (Singapore) |
Audio & Microphone
| Speaker | 32 mm driver |
| Speaker Bandwidth | 20 Hz to 20 kHz |
| Dynamic EQ | Optimised for PC wideband voice telephony up to 7 kHz, or multimedia 20 Hz to 20 kHz |
| Microphones | 2 noise-cancelling microphones on a flexible boom |
| Microphone Bandwidth | 100 Hz to 6.8 kHz |
| Noise Reduction | Poly Acoustic Fence technology |
| Hearing Protection | SoundGuard DIGITAL — G616 support limits the level to 102 dBSPL |
Connectivity
| Bluetooth | Bluetooth v5.2, Class 1 |
| Bluetooth Profiles | A2DP, AVRCP, HSP, HFP |
| Wireless Range | Up to 50 m / 164 ft (up to 91 m with the Voyager Office base, sold separately) |
| Multipoint | Connects to two devices at the same time; remembers up to 8 devices |
| USB Adapter | Poly BT700 Bluetooth USB-A adapter (included) |
| PC / Mac | Bluetooth, or the BT700 USB-A adapter |
| Mobile | Bluetooth |
| Desk Phone | Via Voyager Office base with telephone interface cable (sold separately) |
| Corded Use | Can be used as a corded headset over the USB charging cable |
Battery
| Battery | 350 mAh rechargeable lithium-ion |
| Talk Time | Up to 24 hours (online indicator off); up to 18 hours (indicator on) |
| Music / Listening Time | Up to 47 hours |
| Standby Time | Up to 50 days |
| Charge Time | About 1.6 hours for a full charge |
| Quick Charge | 15 minutes of charge gives up to 10 hours of listening time |
Design & Power
| Charging Stand | Included in this configuration |
| Charging Connector | USB Type-C on the headset |
| Management | Poly Lens service and Poly Lens Desktop App |
Specifications are taken from HP’s Poly Voyager 4300 UC series product page and the HP product specification sheet for this part number. HP publishes Bluetooth v5.1 on some older SKU sheets for this series; the current Poly Voyager 4300 UC series datasheet and HP product page both state v5.2.
Compatibility & Software Support
Operating Systems
| Supported OS | Windows 11, Windows 10, macOS, Android, iOS |
Platforms & Certifications
This is the UC build. HP lists it as Microsoft Teams Open Office certified, Zoom certified and Google Meet certified. HP also lists the Voyager 4300 UC series as an Intel® Evo™ featured accessory.
Connection Modes
- BT700 USB-A adapter — the recommended PC connection; a dedicated Bluetooth link that avoids the variability of built-in laptop Bluetooth radios.
- Native Bluetooth — pair straight to a laptop, tablet or phone.
- Multipoint — two active devices at once, typically laptop plus mobile.
- Corded / USB — keep talking over the USB cable if the battery runs down.
- Desk phone — supported through the Voyager Office base and telephone interface cable, ordered separately.
Poly Lens Management
The Voyager 4320 is managed with the Poly Lens service and the Poly Lens Desktop App: firmware updates, device settings, health-and-safety settings such as SoundGuard, and fleet reporting for IT. Poly Lens is a free download from Poly and is the same tool used across the Poly headset, speakerphone and Studio ranges, so a mixed SourceIT deployment can be managed from one console.
Package Contents & Voyager 4320 Series Ordering Information
In the Box
- Wireless headset
- BT700 Bluetooth USB-A adapter
- Charging stand
- USB Type-A charging cable
- Travel pouch
- Quick start guide
Poly Voyager 4320 Series — Ordering Information
| Voyager 4320 UC stereo, USB-A | 218475-01 / 76U49AA |
| Voyager 4320 UC stereo, USB-C | 218478-01 / 76U50AA |
| Voyager 4320 UC stereo, USB-A + charging stand (this listing) | 218476-01 / 77Y99AA |
| Voyager 4320 UC stereo, USB-C + charging stand | 218479-01 / 77Z31AA |
| Voyager 4320 MS stereo, USB-A | 218475-02 / 77Y98AA |
| Voyager 4320 MS stereo, USB-C | 218478-02 / 77Z30AA |
| Voyager 4320 MS stereo, USB-A + charging stand | 218476-02 / 77Z00AA |
| Voyager 4320 MS stereo, USB-C + charging stand | 218479-02 / 77Z32AA |
Poly Voyager 4310 Mono — Same Series, Single Ear
If you would rather stay aware of the room, the Voyager 4310 is the mono (single-ear) version of the same headset, with the same BT700 adapter options.
| Voyager 4310 UC mono, USB-A | 218470-01 / 76U48AA |
| Voyager 4310 UC mono, USB-C | 218473-01 / 77Y94AA |
| Voyager 4310 UC mono, USB-A + charging stand | 218471-01 / 77Y92AA |
| Voyager 4310 UC mono, USB-C + charging stand | 218474-01 / 77Y96AA |
| Voyager 4310 MS mono, USB-A | 218470-02 / 77Y91AA |
| Voyager 4310 MS mono, USB-C | 218473-02 / 77Y95AA |
| Voyager 4310 MS mono, USB-A + charging stand | 218471-02 / 77Y93AA |
| Voyager 4310 MS mono, USB-C + charging stand | 218474-02 / 77Y97AA |
Related Accessories
The Voyager Office base and telephone interface cable (for desk-phone connectivity) are ordered separately. Speak to SourceIT for current availability and part numbers.
Datasheet & Downloads
Official HP Poly documentation for this model:
Need a signed quotation, a datasheet pack for a tender, or bulk pricing for a Singapore rollout? Contact the SourceIT sales team and we will put it together for you.
Frequently Asked Questions — Poly Voyager 4320
What is the difference between the UC and MS versions of the Poly Voyager 4320?
They are the same physical headset with different firmware and certification. This UC version is certified for Microsoft Teams Open Office, Zoom and Google Meet, which suits mixed-platform environments. The Microsoft Teams certified build (Poly Voyager 4320 Microsoft Teams Certified Headset +BT700 dongle +Charging Stand) adds Teams call control and is the one to order if your organisation is Teams-first.
Do I need the USB-A version, and can I change it later?
The USB-A in the SKU refers to the connector on the bundled Poly BT700 Bluetooth adapter, not the headset. This listing ships the BT700 USB-A adapter, which suits laptops and docks with standard USB-A ports. If you need the other connector, order the USB-C version (77Z31AA) instead. The headset itself also pairs over ordinary Bluetooth, so it will still work with any device even without the adapter.
Is the charging stand included?
Yes. This configuration includes the Poly desktop charging stand, so the headset docks and charges on the desk. If you do not need it, the version without the stand (76U49AA) is the lower-cost option.
Should I choose the Voyager 4320 stereo or the Voyager 4310 mono?
Choose the 4320 (this listing) when users want both ears covered — it helps concentration in open-plan offices and is better for media and long meetings. Choose the Voyager 4310 mono when users need to stay aware of colleagues and the room, which is common in reception, front-of-house and some contact-centre roles. Battery, microphone, adapter and management are otherwise the same across the 4300 UC series.
How does the Voyager 4320 compare with the Voyager Focus 2 and Voyager Surround 80?
The Voyager 4320 is the mainstream office headset: boom microphone, 24-hour talk time, no active noise cancelling. Step up to the Poly Voyager Focus 2 if users need three-level hybrid ANC and a six-microphone array for noisy rooms, or the Poly Voyager Surround 80 for a stereo ANC headset without a visible boom. If wireless is not required at all, the Poly Blackwire 5220 corded USB headset is the budget alternative.
How far can I walk from my laptop, and can I connect two devices?
HP rates the Voyager 4320 at Bluetooth Class 1 with up to 50 m / 164 ft of range using the included BT700 adapter, and up to 91 m with the Voyager Office base. Multipoint keeps the headset connected to two devices at once — typically a laptop and a mobile — and it remembers up to eight paired devices.
Does the Poly Voyager 4320 come with a Singapore warranty?
Yes. Every Poly Voyager 4320 sold by SourceIT comes with local Singapore warranty and a GST invoice.
