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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 6 min read · Independent comparison
• NUBWO HW02 – biggest strength: It's a full wired headset — 60-gram on-ear design, adjustable noise-reducing boom mic, inline volume/mute controls with a mute indicator light, and dual USB + 3.5mm connectivity.
• NUBWO HW02 – biggest trade-off: It's a headset, not an adapter, so it won't help you reuse a Plantronics, Jabra or Sennheiser headset you already own — and noise control is listed as "None," so the mic does the quieting, not active noise cancellation.
• Weatwo RJ9 – biggest strength: A compact 1.9 ft USB-A male to RJ9 female cable that lets compatible U10P-style wired or DECT wireless headsets plug into a computer, laptop, Mac, tablet or PC.
• Weatwo RJ9 – biggest trade-off: Compatibility is narrow. It's built for specific Plantronics, Jabra and Sennheiser models and U10P RJ9 plugs — not every RJ9 headset.
• Pick NUBWO HW02 if you need one ready-to-go headset for MS Teams, Skype, Zoom, webinars or a call center.
• Pick Weatwo RJ9 if you already own a compatible office headset and just need to bridge it to a USB port.
The NUBWO HW02 is the simpler purchase of the two because everything you need is in the box: the headset, a cable and a user manual. There's nothing to match up, no model list to check. You plug in and talk.
What stands out in the specs is how deliberately it's built for long talk sessions. At 60 grams it's genuinely light, and the on-ear, circular earcup shape paired with a plastic enclosure keeps the whole thing unfussy. The 27mm dynamic drivers cover a 20 Hz–20 kHz range at 32 ohm impedance and 96 dB sensitivity — a normal, easy-to-drive spec set for voice work and casual listening, not audiophile music. The enhanced digital signal sound card in the control box is the part that matters most for calls: it's there to keep speech clear and natural even in a busy workspace.
Who should buy it: remote workers, students, webinar hosts, receptionists and call-center staff who want one headset that works across a phone, a laptop and a desktop without extra parts. The 2-year manufacturer warranty is a reasonable safety net.
Who should skip it: anyone who already owns a compatible Plantronics, Jabra or Sennheiser headset and just wants to keep using it — the HW02 replaces your headset rather than adapting it. Also skip it if you want active noise cancellation; the sheet lists noise control as "None," so the isolation you get is from the on-ear fit and the mic's noise handling, not ANC.
Weatwo RJ9: Who It's For
The Weatwo RJ9 is a different kind of product entirely, and it's important to be clear about that: it is a cable, not a headset. It's a 57.5cm (1.9 ft) USB-A male to RJ9 female adapter that takes a headset you already own and makes it work on a computer, laptop, PC, Mac or tablet.
The reason this niche exists is that office headsets — especially DECT wireless ones — traditionally terminate in an RJ9 connector designed for a desk phone, not a USB port. This adapter bridges that gap. The build is straightforward: durable PVC jacket over high-purity copper conductors, with insulation and enough toughness to survive being coiled in a bag. At 20 grams it's the definition of toss-it-in-your-laptop-bag.
Here's the part that decides whether it's right for you. Compatibility is specific. The sheet lists Plantronics models including CS50, CS55, CS351n, CS361n, CS70n, CS540n, CS540, CS530, CS510, CS520, C054 and C052; Jabra Pro 920, GN9125 and GN9120; and Sennheiser D10 wireless headsets. It also states it's only compatible with U10P RJ9 plug wired headsets — not all RJ9 headsets. If your headset isn't on that list or isn't a U10P-style plug, check before buying.
There's also a setup step worth knowing about: you need to make sure the adapter is set as the default input and output device in your application and operating system before it works as expected. That's normal for a USB audio bridge, but it's not quite "plug in and forget."
Who should buy it: someone in an office or home office who already has a compatible wireless DECT or U10P wired headset and wants to use it for softphone or computer calls. The 45-day money-back and 1-year guarantee gives you some room if it doesn't match your setup.
Who should skip it: anyone without a compatible headset. If you don't already own one of the listed models, this cable has nothing to connect. Buy the NUBWO HW02 instead.
• Best for a complete, ready-to-use solution → NUBWO HW02. Headset, mic, controls and cable all included.
• Best for reusing an existing office headset → Weatwo RJ9. It's the whole point of the adapter.
• Best for all-day comfort on long calls → NUBWO HW02. 60 grams with an on-ear fit and inline volume/mute.
• Best for phone and tablet use → NUBWO HW02. The 3.5mm plug goes straight in; the adapter is USB-only.
• Best for travel and minimal kit → Weatwo RJ9. At 20 grams and 1.9 ft, it disappears into a pocket.
• Best for mute-visibility during meetings → NUBWO HW02. The mute indicator light removes the guesswork.
• Best for DECT wireless users → Weatwo RJ9. It's designed around Plantronics, Jabra and Sennheiser wireless models.
• Best for simplicity with zero compatibility homework → NUBWO HW02. No model list to cross-check, no default-device setup.
For most people reading this, I'd buy the NUBWO HW02. It's the lower-risk choice because it's a self-contained product — you get the headset, the mic, the controls and both connection types, and you don't need to verify that your existing gear matches a compatibility list. In my opinion, the 60-gram build, the adjustable boom mic and the mute light make it the more useful everyday tool for calls, webinars and shared workspaces.
The Weatwo RJ9 is the better buy only if you already own a compatible Plantronics, Jabra or Sennheiser headset and want to keep using it on your computer. In that specific situation it's the smart, cheap-feeling-in-a-good-way fix — but it solves one narrow problem, while the HW02 solves the whole thing.
FAQ
It's just an adapter cable — a USB-A male to RJ9 female cord. It has no earpiece or microphone of its own; it connects a compatible headset you already own to a USB port.
No. The listing specifies U10P RJ9 plug wired headsets and certain Plantronics, Jabra and Sennheiser models, and explicitly says it's not compatible with all RJ9 headsets. Check your model first.
Yes. It has a 3.5mm connection for phones and tablets, plus detachable USB inline controls for PC and Mac calls.
That depends on what you already own. If you have no headset, the NUBWO HW02 covers everything in one purchase; if you have a compatible headset, the Weatwo RJ9 is the cheaper way to keep using it. Check the current price on Amazon for both before deciding.
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