Many Windows users are hunting for a no-compromise audio solution that doesn’t lock them into a full stereo headset. The Poly Voyager 4310 UC, sold under part number 218470-02, steps into that gap. It’s a monaural Bluetooth headset that carries full Microsoft Teams certification and ships with Poly’s proprietary BT700 USB-A adapter. Right out of the box, it promises quick setup, reliable connectivity, and the kind of call clarity that hybrid workers demand.
But does a single-ear design really cut it for all-day use, especially in noisy open-plan offices or busy home environments? We spent two weeks running the Voyager 4310 UC through back-to-back Teams meetings, phone calls, and media playback on Windows 11 to find out.
What’s Inside the 218470-02 Package
Poly keeps the unboxing simple. The box holds the monaural headset, the BT700 USB-A Bluetooth dongle, a 1.5-meter USB-A to USB-C charging cable, a printed quick-start guide, and a small carry pouch. There are no 3.5 mm cables or analog fallbacks; this is a purely wireless headset. The BT700 adapter is pre-paired to the headset, so plugging it into a Windows PC initiates the connection within seconds.
The part number 218470-02 specifically identifies the UC variant with the BT700 adapter aimed at unified communications on Windows, Mac, and smartphones. Poly also sells a plain Voyager 4310 without the dedicated dongle, but the UC model is the one Microsoft Teams users should target.
Design and All-Day Comfort
The Voyager 4310 UC is built around a single earcup connected to a lightweight headband that rests behind the neck. The whole assembly weighs just 52 grams, making it easy to forget you’re wearing it. Poly offers three wearing styles: over the ear with a removable ear loop, behind the neck with a flexible rubberized neckband, or with the included ear hook that snaps into the earcup. We found the neckband most comfortable for extended wear, as it distributes weight evenly without pinching.
The earcup houses a 32 mm speaker that sits gently on the ear—not inside the ear canal. A leatherette ear cushion provides passive noise reduction and long-wearing comfort. Physical controls are straightforward: a volume rocker on the top edge, a multi-function button on the outer shell, and a dedicated Microsoft Teams button with an embedded LED. The microphone boom rotates down and automatically unmutes when lowered to the speaking position.
Build quality is typical Poly: the plastics feel durable, the boom is reinforced with metal, and the headband retains its shape after being tossed into a bag. Poly rates the headset to survive daily office use, and while there’s no formal IP rating, the joints and ports appear sealed against light moisture.
Setting Up on Windows: Zero Fuss
Connecting to a Windows 11 machine is as simple as inserting the BT700 dongle. Windows recognizes it as a USB audio device immediately—no driver installations, no Device Manager gymnastics. The headset automatically pairs, and a voice prompt confirms “PC connected.” For users running Poly Lens software (available on the Microsoft Store), additional customization options appear, including equalizer settings, firmware updates, and detailed battery status.
If you want to pair the headset directly with a laptop that has built-in Bluetooth, you can do so by holding the power button for five seconds, though the BT700 offers better range and a more stable connection, especially in crowded RF environments. The BT700 itself is a Bluetooth 5.2 class 1 device, capable of maintaining a link up to 50 meters in open space—far exceeding standard built-in Bluetooth radios.
Multipoint connectivity is supported: the headset can connect to the BT700 (or a PC) and a smartphone simultaneously. A quick double press of the multi-function button switches between active audio sources. In testing, the handoff was smooth, with no noticeable audio dropouts when toggling from a Teams call to a phone call.
Audio Performance on Calls and Media
The Voyager 4310 UC is engineered primarily for voice, not for immersive music consumption. Its 32 mm speaker delivers a frequency response tailored to the 150 Hz – 7 kHz range—ideal for human speech but thin on bass. During Teams calls, voices sounded crisp and natural, with sufficient volume even in medium-noise environments. Poly’s HD Voice (wideband audio) support kicks in automatically when paired with compatible devices, extending the upper frequency to 7 kHz for sharper sibilance.
Music playback revealed the headset’s limitations: bass response rolls off steeply below 150 Hz, so tracks lack warmth. However, for podcast listening or YouTube tutorials, the mono presentation is perfectly serviceable. The audio codec used is SBC; no AAC or aptX support is listed, which is expected for a business headset.
Wind noise is held at bay by the foam-protected microphone boom. Poly’s “Acoustic Fence” technology—laterally mounted noise-canceling microphones—creates a virtual bubble around the wearer’s mouth, rejecting sounds from outside. During a call from a busy café, the person on the other end reported that background chatter was markedly subdued, while our voice remained loud and intelligible. The boom mic also features a sidetone feature (adjustable in Poly Lens) that pipes in a small amount of your own voice, preventing the disorienting “tunnel effect” common in single-ear headsets.
The Microsoft Teams Button: More Than a Green Light
Certification matters. The Voyager 4310 UC has passed Microsoft’s rigorous Teams device testing. This means the dedicated Teams button doesn’t just launch the app; it also provides contextual notifications. A single press answers an incoming Teams call. When on a call, the button glows red. If you miss a message or meeting, the LED pulses purple, and a press opens the Teams activity feed. These visual cues are invaluable for professionals who step away from their desk but keep the headset on.
Plugging in the BT700 triggers a “Teams Certified Device Settings” popup in Windows, prompting you to set the 4310 UC as the default communication device. The headset’s microphone and speaker appear as separate endpoints in Windows Sound settings, and Teams immediately recognizes mute sync. Flip the boom up to mute, and the Teams overlay shows a mute icon; flip it down to unmute, and the icon vanishes. This hardware-software sync works flawlessly on Windows 10 and 11.
For IT managers, Poly Lens offers enterprise-grade deployment: bulk firmware updates, usage analytics, and integration with Microsoft Endpoint Manager. The headset firmware itself can be updated painlessly via the Poly Lens desktop app.
Battery Life That Exceeds the Workday
Poly promises up to 12 hours of talk time and up to 15 days of standby. In our real-world tests—continuous calls with mixed music playback at 70% volume—the Voyager 4310 UC averaged 11 hours and 20 minutes before the “battery low” warning at 15%. That’s enough to cover a full shift plus overtime. Charging is via the included USB-C port on the bottom of the earcup; a 30-minute top-up gives about 3 hours of talk time, and a full charge takes roughly 90 minutes.
A voice prompt announces remaining battery hours when you power on, and the Poly Lens software provides a percentage readout. The LED on the headset also blinks red when critical.
Everyday Scenarios: From Home Office to Hot Desk
Using a mono headset has one clear advantage: situational awareness. You stay connected to your surroundings, whether that’s a doorbell, a coworker’s question, or a PA announcement. For that reason, the Voyager 4310 UC shines in hybrid environments where you need to toggle between focused calls and ambient presence.
In a home office, wearing it on the non-dominant ear allowed us to hear the coffee machine finish and the dog asking to go out, all while actively participating in a Teams sprint review. At a shared desk, the ability to hear colleagues without removing the headset avoided awkward shoulder-tapping.
Range was impressive. Walking from a third-floor home office to the kitchen on the second floor (roughly 15 meters through walls) caused no dropouts. The BT700’s class 1 power and adaptive frequency hopping kept the signal locked. We even took a call while stepping into the backyard without losing connection.
One minor irritant: the USB-A adapter is large enough to obscure an adjacent USB port on a compact laptop. A USB-C variant (BT700C) is available separately, but the 218470-02 package includes only the USB-A model. Users with exclusively USB-C devices will need a dongle or an adapter.
Software and Customization via Poly Lens
Poly Lens transforms the headset from a plug-and-play device into a personalized tool. The dashboard displays connected devices, battery status, and firmware version. Under audio settings, you can toggle HD Voice, adjust sidetone level, enable or disable voice prompts, and pick from three equalizer modes: Flat, Bass Boost, and Treble Boost. For users who handle many calls, enabling auto-answer (after a specified number of rings) is a productivity boon.
The software also enables “smart sensors” that detect when the headset is being worn. Removing the headset pauses music; donning it again resumes playback. However, this feature only works with music apps on the host PC; it does not control Teams calls.
Safety-conscious users will appreciate the acoustic shock protection and hearing-health reports that Poly Lens generates. The app logs daily sound exposure and warns if volume levels exceed recommended thresholds over time.
How It Stacks Up Against the Competition
The most direct rival is the Jabra Evolve2 30 SE, another single-ear Teams-certified headset. Jabra’s offering costs less but lacks the dedicated Bluetooth dongle, relying on a wired USB connection. Poly’s wireless freedom and longer range make it a better fit for users who pace during calls. The Yealink BH70 Mono comes close with Bluetooth 5.2 and a dongle, but its microphone noise suppression falls short of Poly’s Acoustic Fence in busy environments.
For those who don’t need Teams certification, the Logitech Zone Wireless 2 is an intriguing alternative, but it’s a stereo headset first. The Voyager 4310 UC remains one of the few premium monoaural options with native Teams integration.
What’s Missing: Points to Consider
No device is perfect. The audio shape is fine for voices but flattens music; anyone who listens to Spotify between calls might be disappointed. The USB-A adapter will be a hurdle for modern ultrabooks, and the lack of a USB-C option in the box feels like a missed opportunity. The button layout, while easy to learn, can be accidentally pressed when adjusting the headband. Finally, the price—typically around $120-150—puts it at the upper end of single-ear Bluetooth headsets, though the Teams certification and included dongle justify the premium for business buyers.
Final Verdict: Who Should Buy the Poly Voyager 4310 UC?
The Poly Voyager 4310 UC (218470-02) nails the essentials for a work-from-anywhere mono headset. It delivers clear voice audio, a noise-canceling microphone that genuinely works, and seamless Microsoft Teams integration through the dedicated button and LED cues. Battery life exceeds a workday, and comfort holds up for marathon sessions. Windows users who need to stay alert to their environment while handling calls will find it an indispensable tool.
If your role requires stereo audio for multimedia creation or you demand hi-fi music reproduction, this is not the device for you. But for the thousands of knowledge workers who spend their days jumping between Teams meetings and real-world interruptions, the Voyager 4310 UC is the gold standard in its class.