How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to refresh a single pair of Beats Solo 4 headphones with cooling gel comfort, choose Adhiper Replacement Ear Pads; if you need a classroom-ready stockpile of 30 wired on-ear headphones, choose Konohan 30. These two products sit in completely different lanes, and that's the whole point of this comparison.
• Adhiper Replacement Ear Pads — biggest strength: a dual-layer ice silk and cooling gel build that targets heat and pressure buildup on one specific headphone, the Beats Solo 4 (model A3140).
• Adhiper Replacement Ear Pads — biggest trade-off: it is a single pair of replacement cushions, not a headphone. It only fits Solo 4, and nothing else.
• Konohan 30 — biggest strength: 30 individually wrapped wired on-ear headphones in one bulk package with a universal 3.5mm jack.
• Konohan 30 — biggest trade-off: sound and build are basic by design, and there is no wireless option, no microphone claim, and no cooling feature.
• Who Adhiper is for: a Solo 4 owner whose original pads are worn, hot, or uncomfortable.
• Who Konohan 30 is for: teachers, test coordinators, and offices that need many cheap, shareable headphones at once.
The Adhiper Replacement Ear Pads are a maintenance part, and that shapes everything about them. They are built specifically for the Beats Solo 4 Wireless (model A3140), and Adhiper is explicit that they do not fit Solo3, Solo2, or the Studio series. So before anything else, this is a compatibility purchase, not a general upgrade. If you own Solo 4, you're in the right place. If you own anything else, stop here.
What makes them interesting is the layered construction. There's an ice silk fabric top layer and a gel foam layer underneath, and the design intent is a split job: the upper gel draws heat away while the bottom memory foam keeps the seal that preserves noise isolation. That two-layer approach is the reason these pads exist as a distinct product rather than a generic foam ring. Gel-infused foam is also pitched as softer than standard pads, with gel particles meant to shift and conform to the shape of your ear instead of pressing on one spot. For anyone who wears Solo 4 for hours of calls, commutes, or editing sessions, that pressure relief is the real selling point.
Who should skip it? Anyone who wants a new set of headphones, anyone with a non-Solo 4 model, and anyone who prefers a totally different pad material or thickness than the original. This is a like-for-like replacement with a comfort twist, not a redesign.
Konohan 30: Who It's For
Konohan 30 is a bulk pack of 30 wired on-ear headphones, individually wrapped, in assorted colors. The model is listed as KQ2804, the ear placement is on-ear, and the cable runs about 4.92 feet. That cable length is one of the more practical details here: it gives a student or trainee room to shift in a chair without feeling chained to the desk. The headband is slim and adjustable, and the cushions are soft foam, which is the spec that matters when someone is wearing the same pair through a full class period or a standardized test.
The 3.5mm jack is the other headline. It's a universal analog plug, and Konohan lists compatibility with laptops, desktops, tablets, smartphones, MP3 players, and classroom audio systems, plus listening consoles and media players. There's no Bluetooth, no pairing, no charging, and no battery to manage. For a school or testing center, that's a feature, not a limitation: a wired headphone that works the moment it's plugged in, on any device with a headphone jack, is exactly what you want when 30 people need to start at the same time.
Konohan frames the use cases broadly, and they hold together: classrooms, libraries, exam centers, computer labs, offices, training facilities, art galleries, plus party favors, travel supplies, and back-to-school kits. The material spec is ABS and PVC, and the size is listed as roughly 5 x 7 inches per headphone. The pack is reusable rather than disposable, so the intent is repeated use over a school year or a training cycle.
Who should skip it? Anyone shopping for one nice pair of headphones for personal music listening. Anyone who needs wireless, noise cancellation, or serious audio fidelity. And anyone whose devices have no 3.5mm port at all — Konohan's own notes tell you to confirm the jack size before ordering. There's also a stated winding risk, so keep the cables away from young children.
• Best for replacing worn pads on Beats Solo 4 → Adhiper Replacement Ear Pads. It's built for that exact model, A3140, and nothing else.
• Best for equipping a classroom or exam center → Konohan 30. Thirty headphones, individually wrapped, ready to hand out.
• Best for hot, sweaty ears during long sessions → Adhiper Replacement Ear Pads. The ice silk plus gel layer is designed to pull heat and cut pressure.
• Best for mixed devices with a 3.5mm jack → Konohan 30. Laptops, desktops, tablets, phones, MP3 players, and classroom audio systems are all listed as compatible.
• Best for people who hate setup → Konohan 30. Plug in and listen. No adhesive, no alignment, no steps.
• Best for people who want to keep the headphones they already love → Adhiper Replacement Ear Pads. It preserves the original slim profile instead of changing the look.
• Best for low-maintenance, no-charging use → Konohan 30. Wired means no battery to top up before a lesson or a test.
• Best for comfort customization rather than volume → Adhiper Replacement Ear Pads. Softness and cooling are the whole design brief here.
In my opinion, these aren't really competitors, so the honest answer is that you buy based on the job. If I owned Beats Solo 4 and the pads were hot, flattened, or peeling, I would buy the Adhiper Replacement Ear Pads — the cooling gel layer, the memory foam base, and the tool-free three-step install are exactly what a pad refresh should look like, and the Solo 4-only fit means no guesswork. If I were outfitting a classroom, lab, or training room, I would buy Konohan 30 without hesitation: 30 wired headphones, universal 3.5mm plugs, and a 4.92 ft cable are the right specs for shared, no-fuss listening. One fixes a pair you already own. The other creates a set of 30 from nothing. Check the current price on Amazon for whichever job is actually yours.
FAQ
Yes, if the device has a 3.5mm jack. Konohan lists compatibility with laptops, desktops, tablets, smartphones, MP3 players, and classroom audio systems. Confirm the jack size first, since newer phones often lack one.
No tools and no separate glue. The set includes an alignment tool and a visual guide, and the pads use peel-and-stick adhesive: remove the old pads, align the new ones, press the edges firmly.
No. They're wired on-ear headphones with a 3.5mm plug and a cable about 4.92 feet long. There's no Bluetooth, no battery, and no charging involved.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.