We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want a plug-and-play headset for a legacy RJ9 desk phone — Polycom, Mitel, ShoreTel, NEC, Nortel and similar landline models — choose Callez Telephone Headset; if you need a USB headset for softphone and UC platforms like Microsoft Teams, Zoom or Skype on a PC, choose Yealink UH36. These two headsets barely compete for the same buyer, and that's the whole point of this comparison: the connector decides it.
• Callez Telephone Headset — biggest strength: a genuine RJ9 landline connection with wideband audio, a noise-cancelling mic, acoustic shock protection and a 44g on-ear build for all-day desk work.
• Callez Telephone Headset — biggest trade-off: it only works with specific RJ9 desk phone models listed by the brand — no smartphones, no computers, and no flexibility if your phone isn't on the list.
• Yealink UH36 — biggest strength: dual USB-A and 3.5mm connectivity with UC/Teams optimization and broad platform compatibility across Windows and macOS.
• Yealink UH36 — biggest trade-off: it's a softphone/PC headset, so it won't plug into an RJ9 landline phone at all, and the mono version is a single-ear design.
• Who each pick is for: Callez for a call center or reception desk still running hardwired desk phones; Yealink UH36 for a modern softphone, VoIP app or hybrid PC-based setup.
The Callez headset exists to solve one very specific problem: your phone has an RJ9 headset jack and nothing else. It's a monaural on-ear headset with a leatherette cushion, an adjustable headband, a flexible mic boom and a hard-wearing plastic shell built for continuous use. The spec sheet lists a 44g / 1.5oz weight, wideband audio, a noise-cancelling microphone, Acoustic Shock Protection to guard against sudden loud spikes, active noise cancellation for background noise, and built-in volume and mute controls on the cable.
On paper, that's a sensible call-center tool. The single earpiece keeps one ear open to your surroundings, which many agents genuinely prefer when they're working a floor and need to hear a supervisor or a colleague. The noise-cancelling mic is aimed at the reality of a busy room — multiple voices, HVAC hum, keyboard clatter — and the acoustic shock circuit is the kind of feature you don't think about until a bad line crackles in your ear. The 20Hz–20,000Hz range and 150-ohm dynamic driver are standard fare for voice work rather than music.
So who should buy it? The agent or receptionist whose company still runs a hardwired RJ9 desk phone and who wants a lightweight, comfort-focused headset they can plug straight into the phone's headset port without any adapter or software. Who should skip it? Anyone on a softphone, a laptop, a USB dongle, or a desk phone with a USB or Bluetooth interface instead of RJ9. Also skip it if you want stereo sound — this is a work-voice headset, not a media headset. A 30-day money-back window and a 1-year warranty round out the package.
Yealink UH36: Who It's For
The Yealink UH36 is built for the opposite world: the one where your "phone" is software. It's a wired on-ear headset with two connection paths — USB-A for a PC and a 3.5mm jack for a phone, tablet or other personal device. That dual-connector design is genuinely useful in a hybrid setup: plug into the laptop for a Teams call, yank the cable and move to your mobile for a quick conversation, all with the same headset.
Platform support is where it earns its keep. It's optimized for UC and Microsoft Teams, certified for Skype, WhatsApp and other online voice services, and compatible with Windows 7/8/10/XP and macOS. The mic is noise-cancelling, paired with passive noise isolation, and the earcups use breathable protein leather so your ears don't cook during a long shift. Weight comes in around 155g, which is heavier than the Callez but normal for a headset with a fuller earcup and inline controls.
The control scheme is worth noting for its simplicity: volume control is in line, and the mono UC version is a rounded-tip on-ear design in a composite/leather/metal/plastic build. If you're a remote worker, a support agent on a dialer, or someone who spends the day in Zoom and Teams, this is the natural fit. Who should skip it? Anyone whose job still runs on an RJ9 desk phone — the UH36 simply cannot connect there. Also skip it if you specifically need a hardwired, single-purpose landline headset with acoustic shock protection; that's Callez territory. Yealink backs it with a 2-year manufacturer warranty, which is a notably longer coverage window than Callez offers.
Side-by-Side: Which Should You Choose?
• Best for legacy RJ9 desk phones → Callez Telephone Headset. It's the only one of the two that connects to a Polycom, NEC, Nortel or ShoreTel desk phone at all.
• Best for hybrid PC-plus-mobile use → Yealink UH36. USB-A and 3.5mm in the same headset covers a laptop and a phone without swapping gear.
• Best for lightweight wear → Callez Telephone Headset. At 44g versus roughly 155g, it's the lighter option on paper.
• Best for acoustic protection → Callez Telephone Headset. Its Acoustic Shock Protection circuit is designed to guard against sudden loud spikes on the line.
• Best for warranty length → Yealink UH36. A 2-year manufacturer warranty versus Callez's 1-year coverage.
• Best for a busy call-center floor on landlines → Callez Telephone Headset. Wideband voice audio, a noise-cancelling mic and cable-mounted mute are exactly what that role needs.
• Best for remote and work-from-home setups → Yealink UH36. No desk phone required — just a PC and a USB port.
In my opinion, this isn't really a head-to-head so much as a fork in the road, and the connector makes the decision for you. If you're still on an RJ9 desk phone, I'd buy the Callez Telephone Headset — it's lighter, it has acoustic shock protection, and it does the one job it was designed for without an adapter. If your calls live in Teams, Zoom or any PC-based softphone, I'd buy the Yealink UH36 instead: dual USB and 3.5mm connectivity, broad platform support and a longer warranty make it the more flexible long-term pick. Buy the one that matches your phone, not the one that sounds better on paper.
No, and that's the key difference. Callez is an RJ9 landline headset for specific desk phone models listed by the brand, while the Yealink UH36 connects via USB-A or 3.5mm to PCs, laptops, tablets and smartphones. They serve two separate phone ecosystems.
Not directly. The UH36 is a USB and 3.5mm headset, so it needs a device with those ports — typically a computer or mobile device. For an RJ9 desk phone, the Callez is the appropriate choice.
Both are on-ear designs with adjustable headbands and leatherette-style cushions. The Callez is the lighter of the two at 44g, while the UH36 uses breathable protein leather earcups and weighs around 155g. In my opinion, lighter usually wins for marathon shifts, but the UH36's cushioning is aimed at heat and sweat control.
Pricing changes, so I don't quote it here. Use the "Check latest price on Amazon" button on this page to see the current price for whichever headset fits your phone setup.
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See also: MKJ Corded 2.5mm vs Vonztek Headset: Call Center Headphones, AGPTEK ® Call Center vs GEEKRIA Computer Headset, EMAIKER Gold USB Headset vs Callez Computer Headset