Poly Blackwire 5210 Wired Headset, Single-Ear with USB-C and Noise-Cancelling Mic

For desk-based professionals who need hands-free communication across work devices, the Poly Blackwire 5210 keeps calls within easy reach. Its single-ear design lets you stay connected while remaining aware of your surroundings. Connect by USB-C, use the included adapter for USB-A, or plug into a device with a 3.5 mm jack. The flexible boom microphone and inline call controls are ready for busy workdays.

Key specifications

• Name: Blackwire 5210 USB-C with USB-C to USB-A adapter
• Type: Wired, single-ear headset with boom microphone
• Connectivity: USB-C, USB-A via included adapter, and 3.5 mm jack
• Compatibility: PC, Mac, cell phones, tablets, Microsoft Teams, Zoom and other leading collaboration platforms
• Features: Noise-cancelling microphone, SoundGuard DIGITAL, inline call controls
• Weight: 61 g
• What’s included: Headset, USB-C to USB-A adapter and carrying case

The headset’s noise-cancelling microphone is designed to help callers hear your voice rather than surrounding sounds. SoundGuard DIGITAL helps protect against high sound levels, sudden loud noises and prolonged sound exposure. Soft ear cushions and a lightweight headband support comfortable wear during extended calls, while the single-ear format keeps one ear open to the room.

Compatibility & requirements

Choose the connection that suits the device at hand: use USB-C with a compatible PC or Mac, connect through the included USB-C to USB-A adapter, or use the 3.5 mm jack with a compatible mobile device. Plug-and-play compatibility with Teams, Zoom and other leading collaboration platforms makes it straightforward to join online meetings without setting up a separate wireless connection. The wired design is a practical fit for a home office or desk where a direct connection and quick access to call controls matter.

The inline controls put answering and ending calls, volume adjustment and microphone mute within reach. That makes it easier to manage a meeting while working at a computer, without needing to reach for separate controls on the device. When moving between a desk and another workspace, the carrying case offers a convenient way to store and transport the headset and adapter.

Who it’s for

This model suits professionals who spend time on calls and want a straightforward headset for both computer and mobile connections. It can work well for video meetings, customer conversations and day-to-day collaboration, especially when quick mute and volume adjustments are useful. Compared with choosing separate headsets for a computer and a mobile device, its USB-C, USB-A and 3.5 mm options offer a single wired setup for supported devices. Buyers also commonly highlight comfortable wear, clear sound and use with Teams, opinions on how effectively the microphone cancels noise are mixed.

Is it worth it?

The Blackwire 5210 brings practical call features together in a portable, single-ear wired headset: multiple connection options, a flexible boom mic, inline controls and a carrying case. It makes sense if you want one headset for calls at your desk and on compatible mobile devices, while keeping one ear free to hear the space around you. For regular online meetings or professional conversations, its range of connections and simple call management make it a useful everyday fit.