Poly Blackwire 5210
The Blackwire 5210 is a single-ear wired headset that delivers professional voice quality while keeping one ear free for your surroundings. With USB-C, USB-A, and 3.5mm connectivity, plus SoundGuard hearing protection, it's designed for professionals who need clear calls and environmental awareness throughout the day.
Key Features
Single-Ear Awareness
Mono design keeps one ear open so you can hear colleagues, office activity, and in-person questions while staying connected to your call.
Multi-Device Connectivity
Connect via USB-C cord or the included USB-C to USB-A adapter for PC/Mac use, or plug into mobile devices through the 3.5mm jack.
SoundGuard Protection
SoundGuard DIGITAL technology protects against high sound levels, sudden loud noises, and long-term exposure — essential for professionals on calls all day.
Intuitive Inline Controls
Easy-to-reach inline controls let you answer and end calls, adjust volume, and mute with simple button presses. Carrying case included for portability.
Product Details
The Poly Blackwire 5210 offers the same premium audio quality as the dual-ear 5220 in a single-ear form factor. This makes it the ideal choice for professionals who need to stay aware of their physical environment — whether that means hearing a colleague's question, monitoring office activity, or simply preferring the lighter feel of a mono headset.
The noise-canceling microphone ensures callers hear you clearly, not your surroundings. SoundGuard DIGITAL technology provides an extra layer of protection by monitoring and limiting audio levels, guarding against both sudden loud noises and the cumulative effect of long listening sessions.
Connectivity is flexible with USB-C, USB-A (via included adapter), and 3.5mm options, making it easy to switch between your PC, Mac, and mobile devices. The inline controls keep call management simple, and the included carrying case makes the 5210 easy to pack for travel or hybrid work.
Specifications
- Connectivity
- USB-C, USB-A, 3.5mm
- Wearing Style
- Single-Ear (Mono)
- Noise Canceling
- Noise-Canceling Boom Mic
Compatible With
Ideal For
Poly Headset Reviews
“Great product. I needed something that cuts out background noise from traffic when walking and kids at home. This headset does exactly that. Using it on its own or with noise-canceling software cuts out literally all background noise. Talk time is at least 6 hours on a single charge and takes about 30 minutes to recharge.”
— Matt
“This is an amazing headset. Great quality. Great noise reduction. Good for making business calls and knowing you have a quality headset for it. Soft on the ears and fits well. Good range to walk around the house where I used it. Very clear sound.”
— Arnout P
“Love this headset. I've only had it a little over a year, but I'm super happy with it. It's comfortable on my ears, easy to use, and professional. I never have a problem communicating with clients on the other end. It holds a charge for as long as I need it all day. Highly recommend.”
— Debbie
“I have made two horrible decisions about who to marry, but my twice choosing Plantronics for the most important part of my business, phone calls, was spot on. The CS540 works great, even better than I assumed. Product is durable and easy to use. Most important: the volume level adjusts appropriately to suit my hearing.”
— FunDirector
“To install the system was easy and fast. Using the headset has been a game changer for my neck. The pain is gone. I'm able to use the computer and talk with people with no issues. The sound is great and clear.”
— Kristine Garcia
“I got this unit due to price point and name brand. Was pleasantly surprised by its quality and the ease in which it hooked up to our phones. I am getting several more and the user is deliriously happy with it. Current user was amazed that she could continue on call at a 50 foot distance from her desk.”
— John Odoj
Frequently Asked Questions
Everything you need to know about Poly headsets, Plantronics, and finding the right headset for your needs.
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