Description
Tired of being chained to your desk during back-to-back calls? The HP Poly Voyager 4320 (77Y98AA) changes that. This Microsoft Teams certified binaural wireless headset gives you up to 50 meters of freedom, all-day comfort, and up to 24 hours of talk time—so your teams can move, focus, and get more done. Pair it once with the included BT700 USB-A dongle and you’re ready for crystal-clear calls on PC, Mac, or smartphone.
The Telecom Spot Expert Take In today’s hybrid world, headsets that feel like an afterthought kill productivity fast. The Voyager 4320 hits the sweet spot for most IT teams and small-to-mid-size businesses: serious wireless range and noise cancellation without the premium price tag of flagship models. We see this exact model shine in open-plan offices and home setups alike—teams love the on-call indicator light that keeps coworkers from interrupting, the easy mute button, and the fact that it stays comfortable for 8+ hour days. If your people split time between desk phones, PCs, and mobiles, this is the affordable, reliable upgrade that actually gets used.
Key Features
- True wireless freedom – Roam up to 50 m / 164 ft with the included BT700 USB-A dongle—perfect for walking meetings or moving between home office and kitchen without dropping the call.
- All-day power – Up to 24 hours talk time (online indicator off) plus fast charge: just 15 minutes gives you 10 more hours of listening time. Use in corded USB mode when you need even longer sessions.
- Crystal-clear conversations – Dual-mic Acoustic Fence technology blocks background noise so the person on the other end hears only you. Microsoft Teams and Zoom certification plus one-touch access keep meetings smooth.
- Professional presence – On-call indicator light flashes on the ear cup so colleagues know you’re busy; dynamic mute alert reminds you if you forget to unmute.
- Multi-device simplicity – Connect to PC/Mac via dongle or USB cable, smartphone via Bluetooth, and even desk phones (with optional office base). Poly Lens cloud management makes IT deployment and updates effortless.
- Built for comfort & protection – Lightweight binaural on-ear design with soft artificial-leather cushions, adjustable headband, passive noise cancellation, and Poly SoundGuard Digital acoustic protection for safe, fatigue-free listening.
Technical Specifications
| Specification | Details |
|---|---|
| Headphone type | On-ear (binaural/stereo) |
| Microphones | 2 (noise cancelling) – dual-mic Acoustic Fence |
| Speaker size | 32 mm |
| Speaker bandwidth | 20 Hz – 20 kHz |
| Microphone bandwidth | 100 Hz – 6.8 kHz |
| Wireless range | Up to 50 m / 164 ft (with BT700 adapter) |
| Bluetooth version | 5.1 |
| Battery life | Up to 24 hrs talk (indicator off); 18 hrs (indicator on); 47 hrs music; 50 days standby |
| Fast charge | 15 min = 10 hrs listening time |
| Charge time | < 1.6 hours |
| Battery type | Rechargeable Li-ion |
| Weight | 0.162 kg (162 g) |
| Dimensions (W x D x H) | 15.5 × 6.7 × 18.2 cm |
| Cable length | 1.5 m USB charging cable |
| Controls | Call answer/end, mute, volume ±, power, pairing |
| Voice alerts & assistants | Siri, Google Assistant + spoken status alerts |
| Certifications | Microsoft Teams, Zoom; SoundGuard Digital acoustic protection |
| Compatibility | Windows 11/10, macOS, Android, iOS; PCs via BT700 USB-A or USB cable; smartphones via Bluetooth |
| What’s in the box | Wireless headset, BT700 Bluetooth USB-A adapter, USB charging cable, travel pouch, quick start guide |
| Warranty | Poly standard two-year limited warranty |
- Poly SKU: 218475-02
- HP SKU: 77Y98AA


