If you want a lightweight, dual-ear headset optimized for Microsoft Teams with native integration and acoustic protection, choose PLT Poly; if you need a wired, stereo-focused solution with a longer cable and superior sound isolation for a fixed desk setup, choose Hewlett Poly Blackwire 3320. Both units serve the remote worker well, but they solve different problems based on how you move through your day. The decision often comes down to whether you prioritize wireless flexibility or wired stability, especially when considering niche use cases like wearing them during active moments or long sessions.
• PLT Poly (EncorePro 525-M): Offers a dual-ear design with Bluetooth 4.0 and USB-C/A connectivity, making it ideal for users who value wireless freedom and native Teams buttons. Its biggest trade-off is the lack of active noise cancellation features in the hardware itself.
• Hewlett Poly Blackwire 3320: Delivers rich stereo audio with SoundGuard technology for echo reduction and a substantial 7.10-foot cable for workspace flexibility. Its primary limitation is the wired-only connection, which restricts mobility compared to its counterpart.
• Who each pick is for: The PLT model suits professionals who switch between devices and need a lighter, more portable form factor, while the Hewlett model fits those who stay anchored to one workstation and demand high-fidelity stereo sound.
The PLT Poly EncorePro 525-M is built for the modern professional who needs to stay connected without being tethered to a single spot. With its dual-ear wearing style, this headset provides a secure fit that keeps distractions at bay, which is crucial for call center employees or anyone working from home where background noise can be unpredictable. The design focuses on clarity and ease of use, featuring dedicated hold and call answer buttons right on the inline control. This means you don't have to fumble with software menus to manage your calls; everything is accessible with a simple touch.
One of the standout features for me is the acoustic hearing protection. In an era where we are all on calls for hours, managing safe volume levels is not just a nice-to-have—it is essential. This headset actively manages volume to protect your hearing over time, a feature that speaks to the manufacturer's focus on long-term user health. Furthermore, the seamless integration with Microsoft Teams allows you to launch the application instantly via the headset controls. If your daily workflow revolves around Teams meetings, having that native experience directly on the device saves precious seconds every time you join a session.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-31 · 6 min read · Independent comparison
However, this headset is not for everyone. If you are looking for active noise cancelling sleep headphones for workout scenarios or deep immersion in music without digital processing, this might fall short because it lacks specific noise-canceling hardware beyond basic passive isolation. It is also worth noting that while it supports Bluetooth 4.0, it is primarily designed as a work tool rather than a high-end entertainment system. You should skip this product if you require a heavy-duty gaming setup or if you need a device specifically engineered for intense physical activity where sweat resistance is paramount, as it is rated for adult wear in general office environments.
The Hewlett Poly Blackwire 3320 is a powerhouse for the stationary worker who demands reliability and audio fidelity. Its most impressive specification is the 7.10-foot cable length, which provides ample reach and flexibility for comfortable movement within a typical workspace. This is a game-changer for those who need to stand up, walk to the whiteboard, or shift positions without worrying about unplugging or hitting a length limit. The binaural on-ear design with a padded headband ensures that you can wear it for extended periods without discomfort, a critical factor for full-day shifts.
Audio quality is where this unit truly shines. With a frequency range of 20 Hz to 20 kHz, it captures the full spectrum of audio for natural sound reproduction. The 32 Ohm impedance rating ensures compatibility with a wide range of devices and optimal audio output, meaning you get rich, balanced stereo audio whether you are listening to conference calls or multimedia content. The inclusion of SoundGuard technology is another major plus, offering noise reduction and echo reduction features that ensure clear communication even in busy environments. If you are using a rechargeable gaming headset for workout purposes or simply need a reliable audio source for a home office, the stability of a wired connection here cannot be overstated.
That said, the reliance on a wired connection is a significant trade-off. While the cable is long, it still anchors you to your computer or phone, limiting true wireless mobility. You will not find Bluetooth connectivity here, so you cannot easily pair it with a tablet or smartphone for on-the-go use without an adapter. Additionally, while it is excellent for stereo audio, it does not offer the same level of specialized Teams integration buttons as the PLT model, relying instead on standard plug-and-play functionality. This makes it less ideal for power users who want instant access to Teams features without navigating their operating system settings.
• Best for battery-free reliability → Hewlett Poly Blackwire 3320, as its wired design eliminates the need for charging cycles.
• Best for Microsoft Teams integration → PLT Poly, due to its dedicated native Teams button and direct app launching capabilities.
• Best for workspace mobility (within limits) → Hewlett Poly Blackwire 3320, thanks to its generous 7.10-foot cable length.
• Best for wireless flexibility → PLT Poly, which includes Bluetooth 4.0 for connecting to various devices.
• Best for hearing safety features → PLT Poly, with its built-in acoustic protection to manage safe volume levels.
• Best for audio fidelity and stereo richness → Hewlett Poly Blackwire 3320, leveraging its 32 Ohm impedance and full frequency response.
• Best for active noise management → Hewlett Poly Blackwire 3320, utilizing SoundGuard technology for echo and noise reduction.
• Best for lightweight comfort → PLT Poly, weighing only 55 grams compared to the heavier build of the wired alternative.
After analyzing the specifications and intended use cases for both headsets, I would choose the PLT Poly EncorePro 525-M for my personal setup. The combination of Bluetooth connectivity, acoustic hearing protection, and native Teams integration creates a workflow that feels significantly more modern and efficient for a hybrid work environment. While the Hewlett option offers superior cable length and raw stereo audio, the convenience of going wireless and the proactive health features of the PLT model make it the better all-around choice for someone who values adaptability. However, if your primary goal is to find a durable, wired neckband headphones for workout sessions or a dedicated stationary unit for deep focus work, the Hewlett Poly Blackwire 3320 remains a strong contender for its robust build and echo-reducing capabilities. Ultimately, for a versatile tool that handles both calls and the occasional need to move freely, the PLT model wins out.
While neither is explicitly marketed as "active noise cancelling sleep headphones for workout," the PLT Poly is lighter and wireless, making it easier to wear during light activity, whereas the Hewlett Blackwire 3320 is wired and bulkier, better suited for stationary use.
The Hewlett Poly Blackwire 3320 features SoundGuard technology for noise and echo reduction, which generally offers better passive and active noise handling for busy environments compared to the PLT Poly's lack of dedicated noise control hardware.
No, the PLT Poly comes with both USB-A and USB-C connectors on the cable, ensuring compatibility with most modern computers and devices without needing extra adapters.
Yes, its stereo audio and 32 Ohm impedance provide rich sound, making it a viable option as a rechargeable gaming headset for workout alternatives or general desktop use, though it lacks the wireless freedom of gaming-specific headsets.
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