Poly Poly Blackwire 3310 Monaural Microsoft Teams Review

This is a bare-bones, single-ear headset for basic Teams calls. Its microphone and sound quality rank in the bottom quarter of all headsets we've tested. At around $37, it's cheap and includes a USB-C adapter, but you get what you pay for.

The Poly Blackwire 3310 is a basic, single-ear headset built for one thing: plug-and-play Teams calls. It lands in the 21st percentile for microphone quality and the 24th for sound in our database, which tells you everything you need to know about its performance envelope. It's not here to wow you with audio fidelity.

What it does offer is simplicity. It's a wired, mono headset with Microsoft Teams certification, meaning it should just work for that specific app. With a price hovering around $35 to $39, it's squarely in the budget tier, scoring a 21.4 out of 100 in that category. Its best feature might be the included USB-C to USB-A adapter, letting you plug into almost any modern or older computer.

Let's be clear: performance here is about functional clarity, not immersion. The microphone sits in the 21st percentile, which is low, but for a basic boom mic in a quiet environment, it'll get your voice across on a Teams call. The 32-ohm drivers and mono sound profile (24th percentile) are tuned for speech, not music or gaming. You won't get any fancy features like active noise cancellation (30th percentile) or wireless connectivity (20th percentile). Its 'performance' is being reliably present. The 7-foot cable gives you some desk freedom, and the Teams certification handles basic call controls.

For about $37, you get a certified, no-fuss tool for a specific job: wired Teams calls. The value is entirely in that simplicity and the included adapter. Compared to grabbing a random $20 headset, the Teams certification adds a layer of guaranteed basic functionality. But you're giving up a lot for that price, namely any semblance of good audio quality, comfort, or modern features. It's a trade-off of capability for cost.

This isn't competing with the Sonys or Sennheisers on the list—those are full-featured, wireless audiophile cans. A fairer budget comparison is something like a basic Logitech H390. The Poly's edge is the Teams certification and USB-C native plug. Against a standard 3.5mm headset, the Poly offers slightly more modern connectivity. But if you need a mic for noisy environments, look elsewhere; its mic percentile is a major weak point. For a few dollars more, you can often find stereo headsets with better mics, but they might lack the specific Teams button integration.

Skip this headset if you need to take calls in a noisy place. Its microphone is in the 21st percentile and lacks any meaningful noise isolation. Also, avoid it if you want to listen to music, podcasts, or anything in stereo—the mono design makes that pointless. Gamers, music lovers, and anyone working in a busy environment should look at headsets with significantly higher mic and sound percentiles.

We can only recommend the Poly Blackwire 3310 to one very specific person: someone who needs the absolute cheapest, simplest, officially-certified Teams headset for a quiet home office and doesn't care about audio quality. Its data-backed weaknesses in mic, sound, and comfort are significant. For virtually anyone else, even on a tight budget, spending a little more for a stereo headset with a better microphone percentile will be a dramatically better experience.