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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 7 min read · Independent comparison
• Voistek RJ9 — biggest strength: a complete, purpose-built RJ9 corded phone headset with a noise canceling mic, inline volume and mute, and a lightweight on-ear design aimed at all-day office and call-center use.
• Voistek RJ9 — biggest trade-off: it is locked to RJ9-compatible office desk phones only — it will not work with computers, smartphones or USB devices, so it is useless for anything else.
• WHMVPWT Disposable Headphone Covers — biggest strength: 300 single-use non-woven covers in one pack, sized to stretch over 8–11cm over-ear headphones so every user gets a fresh barrier.
• WHMVPWT Disposable Headphone Covers — biggest trade-off: they are a hygiene accessory, not audio gear. They add no microphone, no sound and no controls — you still need a working headset underneath.
• Who each is for: Voistek RJ9 is for the individual agent or receptionist who wants one reliable headset on their own desk phone. WHMVPWT covers are for the manager or shared-space operator who hands headphones from person to person all day.
The Voistek RJ9 is a corded telephone headset built around one job: making desk-phone conversations sound decent for hours at a time. It connects through an RJ9 jack, which is the small rectangular connector you find on a lot of Polycom, Plantronics, Nortel, Toshiba, Mitel and ShoreTel business phones. That single fact defines everything about it — and it's the first thing to check before you buy. If your phone doesn't take an RJ9 plug, this headset simply won't connect. No computers, no smartphones, no USB adapters.
Comfort is clearly the design priority. It's binaural (both ears) with a circle-shaped on-ear fit, leather ear cushions, an adjustable headband, and the brand notes it runs 10–30% lighter than other professional RJ9 headsets. The reinforced cable is 6.5 feet, which is a sensible length for reaching around a workstation without dragging. It ships with a 2-year warranty and a 45-day return-or-replacement policy.
Who should buy it: call-center agents, receptionists, telemarketers and office staff who live on a compatible desk phone and want a lighter, comfortable headset with controls within reach. Who should skip it: anyone who needs a headset for a laptop, a softphone, a mobile phone, or a mixed USB setup — this is strictly a landline-and-desk-phone tool. And if you're specifically hunting the best rotatable ear cups gaming headphones for zoom calls, note that the RJ9 doesn't promise a rotating ear cup and won't plug into your computer at all, so it isn't that product.
WHMVPWT Disposable Headphone Covers: Who It's For
The WHMVPWT pack is a fundamentally different kind of purchase. You get 300 disposable headphone covers made from soft non-woven fabric (blended with polyester), each one designed to stretch over over-ear headphones measuring 8–11cm across. The idea is simple: in any setting where headphones pass from one person to the next, a fresh single-use cover puts a clean barrier between the earcup and the next wearer's ear. No sprays, no wipes, no shared foam touching skin.
The 300-count pack is the headline here. For a high-traffic environment — a call center floor, a school computer lab, a library listening station, a gym, a hospital, an airline counter — one cover per user per session adds up fast, and a big box means you're not reordering every week. The universal 8–11cm sizing is meant to cover most standard over-ear models, so you're not hunting for a specific brand match.
There's a clear limit, though, and it's worth saying plainly: this is a hygiene accessory, not a headset. It has no microphone, no speakers, no cable and no controls. It doesn't improve call audio and it doesn't connect to anything. You still need functioning headphones or a headset underneath. The non-woven fabric is a barrier, not a noise-isolation material — it won't meaningfully change how anything sounds. It carries a 30-day warranty, which is short, but this is a consumable product rather than a durable one.
Who should buy it: IT managers, front-desk supervisors, teachers, gym staff and clinic coordinators who issue shared headphones and want a cheap, fast way to keep them sanitary between users. Who should skip it: any individual who owns their own headset and never shares it — you'd have no real use for 300 covers. And if you're a single remote worker trying to find on ear headphones for zoom calls, this pack does nothing for you; it's not audio equipment.
• Best for making desk-phone calls → Voistek RJ9. The noise canceling mic, wideband audio and inline mute are exactly what a phone-based role needs.
• Best for sharing headphones between people → WHMVPWT Disposable Headphone Covers. Fresh cover per user, 300 of them, no cleaning routine required.
• Best for all-day wear on your own head → Voistek RJ9. Lightweight build, adjustable headband, leather cushions, binaural fit.
• Best for hygiene in a public or clinical space → WHMVPWT. Gyms, hospitals, libraries and schools are exactly the settings the pack is sized for.
• Best for a computer or softphone setup → neither, honestly. The RJ9 is desk-phone only, and the covers are just covers. If you need a computer headset or spatial-audio wireless headset for zoom calls, look elsewhere.
• Best for volume and mute control at arm's reach → Voistek RJ9. Push-button inline controls on a 6.5-foot reinforced cable.
• Best for a one-and-done bulk purchase → WHMVPWT. A single 300-count pack covers a lot of users before you think about restocking.
• Best for hearing protection on long calls → Voistek RJ9. Acoustic Shock Protection is a real differentiator for people on the line for hours.
If I were buying for myself — say I'm an agent who spends the day on a compatible desk phone and also jumps into zoom calls — I'd choose the Voistek RJ9. It's the actual piece of equipment: noise canceling mic, wideband audio, inline volume and mute, a light on-ear frame and a 2-year warranty. In my opinion, that's the better buy for anyone whose job runs through a phone. The WHMVPWT covers are excellent at what they do, but they're a hygiene supply for shared headphones, not a headset. If you run a shared space, buy the covers; if you need to talk, buy the RJ9. And before you commit, check the current price on Amazon — the button on this page takes you there.
It works with RJ9-compatible desk phones from several major brands, including selected Polycom, Plantronics, Nortel, Toshiba, Mitel and ShoreTel models. Check the compatibility list before buying, and note it won't work with computers, smartphones or USB devices.
No. It's an RJ9 telephone headset designed for desk phones only. There's no USB or 3.5mm connection, so it won't plug into a laptop, and it doesn't offer wireless spatial audio. For computer-based calls you'd need a different type of headset.
You get 300 single-use covers in the pack, sized for over-ear headphones between 8–11cm. That volume suits busy shared environments like call centers, gyms, schools and hospitals where a fresh cover is used per person.
No. They're a soft non-woven fabric barrier for hygiene, not a sound-improving or noise-blocking product. They simply add a clean layer between the earcup and the wearer's ear.
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