If you want a lightweight, over-ear headset with a rotating microphone for all-day comfort during long Zoom sessions, choose Plantronics Poly Blackwire 3320; if you need a versatile, on-ear model with a longer cable and a 3.5mm adapter for maximum device compatibility, choose Hewlett Poly Blackwire 3320.
• Plantronics Poly Blackwire 3320: Offers superior all-day comfort with an over-ear design and dynamic EQ, but is limited to USB-C connectivity only.
• Hewlett Poly Blackwire 3320: Delivers exceptional reach with a 7.1-foot cable and includes a 3.5mm adapter for legacy devices, though it sits on the ear rather than around it.
• The Verdict: Pick the Plantronics model for pure communication focus and silence, or the Hewlett version for workspace flexibility and broader connection options.
This headset is engineered specifically for professionals who prioritize physical comfort above all else during extended conference calls. The defining feature here is the over-ear design, which wraps around your ears rather than resting directly on them. For anyone spending eight hours or more in back-to-back meetings, this distinction changes everything. The padded ear cushions and headband are designed to distribute weight evenly, making the 210-gram unit feel almost invisible after the first few minutes of wear. This is not just about padding; it is about ergonomics that prevent the fatigue common with on-ear models.
The audio experience is tuned for clarity and protection. With a frequency range spanning from 20 Hz to 20,000 Hz, the dynamic drivers deliver hi-fi stereo sound that captures the full spectrum of voices and background noise. What sets this model apart is the inclusion of Dynamic EQ, which automatically optimizes sound levels so you never have to manually adjust volume as people speak louder or softer. Coupled with SoundGuard technology, your hearing is protected from sudden spikes in audio volume, a critical safety feature for those working in unpredictable environments.
Who should buy this? You are the ideal candidate if your workflow involves heavy Microsoft Teams usage, as this unit is officially certified for Teams and Skype for Business. The plug-and-play USB-C connection means you can drop it into your laptop and start talking immediately without driver installation. The microphone rotates 180 degrees, allowing you to position it on either side of your head depending on whether you are right-handed or left-handed, ensuring the boom arm never gets in the way of your typing or mouse work. However, if you frequently switch between different types of devices that do not support USB-C, or if you prefer a lighter, less intrusive form factor that doesn't cover your ears completely, this might be too bulky for your specific needs.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-28 · 6 min read · Independent comparison
The Hewlett Poly Blackwire 3320 targets users who value versatility and movement within their workspace. Its most striking specification is the cable length, which stretches to 7.10 feet. In a typical home office or open-plan environment, this provides ample reach, allowing you to stand up, walk to the whiteboard, or move around your desk without being tethered by a short wire. This freedom of movement is essential for active workers who find themselves constantly shifting positions during brainstorming sessions or when grabbing documents. The impedance rating of 32 Ohms ensures that the headset pairs well with a wide array of devices, delivering optimal audio output regardless of the source hardware.
Despite its focus on mobility, this model does not sacrifice audio fidelity. It features a binaural on-ear design that delivers rich, balanced stereo audio. While the ear placement is different from the over-ear alternative, the padded headband and adjustable fit are designed to maintain comfort throughout the day. The SoundGuard technology here works in tandem with noise reduction and echo reduction features, ensuring that your voice comes through clearly even in busy environments with background chatter. The inclusion of a dedicated button for Microsoft Teams integration allows for seamless control, letting you mute, answer, or end calls with a simple press, keeping your hands free for other tasks.
Who should buy this? This is the best choice for those who need a "one headset fits all" solution. The package includes a Mini-Phone (3.5mm) adapter alongside the USB Type C connection, meaning you can plug this into older desktops, tablets, or smartphones that lack a native USB-C port. If you travel often and use various laptops, some of which may rely on standard headphone jacks, this dual-connectivity setup saves you from carrying extra dongles. However, if you suffer from sensitivity around the ears or find that pressure on the pinna becomes painful after an hour, the on-ear design might not be suitable for your marathon call days. It is also slightly heavier at one pound compared to its counterpart, which some users might notice during extended wear.
• Best for battery-free reliability → Both are wired, but the Plantronics model offers a sleeker USB-C profile for modern setups.
• Best for workspace mobility → Hewlett Poly Blackwire 3320 wins with its 7.10-foot cable that lets you move freely across the room.
• Best for long-duration comfort → Plantronics Poly Blackwire 3320 takes the lead with its over-ear design that avoids ear fatigue.
• Best for device compatibility → Hewlett Poly Blackwire 3320 is the clear winner due to the included 3.5mm adapter for legacy gear.
• Best for microphone flexibility → Plantronics Poly Blackwire 3320 allows the mic to rotate 180 degrees for left or right-handed use.
• Best for sound customization → Plantronics Poly Blackwire 3320 includes Dynamic EQ to auto-adjust volume levels automatically.
• Best for professional certification → Both are Microsoft Teams certified, but the Hewlett model emphasizes dedicated button integration.
• Best for lightweight portability → Plantronics Poly Blackwire 3320 is significantly lighter at 210g versus the 1-pound Hewlett unit.
For my own recommendation, I would choose the Plantronics Poly Blackwire 3320 as the superior option for anyone looking for the best earphones for zoom calls. While the Hewlett version offers great cable length, the over-ear design of the Plantronics model provides a level of isolation and comfort that simply cannot be matched by on-ear alternatives during long shifts. The ability to rotate the microphone is a small detail that makes a massive difference in daily usability, and the Dynamic EQ ensures that every conversation sounds crisp without me needing to fiddle with settings. If your primary goal is to sound professional and stay comfortable while wearing headphones for the entire workday, this is the logical choice.
However, if your workspace requires you to stand up and move around frequently, or if you are forced to use older computers with only 3.5mm jacks, then the Hewlett Poly Blackwire 3320 becomes the necessary tool. But for the average remote worker prioritizing the best headphone for zoom calls, the Plantronics model strikes the perfect balance of audio quality, ergonomic design, and intelligent sound management. It feels like a tool built specifically for the modern hybrid worker who values silence and clarity above all else.
Yes, both units are plug-and-play with USB devices, ensuring they work seamlessly with Windows and macOS operating systems without requiring additional drivers.
Both models utilize SoundGuard technology for echo and noise reduction, but they rely primarily on passive noise cancellation through their physical design and padding rather than electronic active cancellation circuits.
Users who wear glasses often find the over-ear design of the Plantronics Poly Blackwire 3320 more comfortable as it distributes pressure around the ear rather than pressing directly against the temples where glasses frames sit.
Absolutely, the Hewlett Poly Blackwire 3320 includes a Mini-Phone (3.5mm) adapter, allowing you to connect it to smartphones, tablets, or desktops that rely on traditional headphone jacks.
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