How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 8 min read · Independent comparison
These two products sit in completely different corners of the audio world, so the honest answer is that they aren't really rivals at all. One is a wearable device; the other is a protective accessory. But shoppers searching for both terms are usually trying to decide where their money goes — a new pair of earbuds, or a way to keep an existing headset safe. Here's how I'd break that decision down.
• CuiSuto Open Ear Earbuds — biggest strength: a true open-ear wireless design with 14.2mm dynamic drivers, Bluetooth 5.3, a 10-meter range and a charging case with an LED power display, so you get real audio hardware, not just a shell.
• CuiSuto Open Ear Earbuds — biggest trade-off: battery life is modest per charge (4 hours), and the open-ear shape means sound isolation is limited by design — that's the point, but it's also the compromise.
• MAS CARNEY Over Ear Headphones — biggest strength: a hard EVA shell with a soft loop-pile lining, an elastic securing strap and a mesh pocket, sized at 8.6" × 7.5" × 2.6" to fit a long list of swivel-foldable headphones.
• MAS CARNEY Over Ear Headphones — biggest trade-off: it does not produce sound at all. You need to already own compatible headphones, and you must confirm your model fits before buying.
• Who each is for: CuiSuto for the runner, gym-goer or commuter who wants situational awareness while listening; MAS CARNEY for the student, traveller or parent who needs to protect a folding headset from getting crushed in a bag.
The CuiSuto Open Ear Earbuds are built around one idea: let sound in from the outside while music plays. Instead of sealing off your ear canal, they rest in an open-ear position, which the brand frames as a way to reduce pressure on the eardrum and make long listening sessions more comfortable. That's the real selling point here, and for a certain kind of buyer it changes everything. If you've ever pulled earbuds out at a crosswalk because you couldn't hear traffic, this design speaks directly to you.
Battery is where you need to read carefully. A single charge gives 4 hours of playback, and the case extends that to a total of 36 hours. The case itself has an LED display showing remaining power and charging status — a small feature that's genuinely useful, because you stop guessing. Charging takes about 4 hours. On waterproofing, the listing is inconsistent: the title says IPX7 while the feature text says IP54. I'd treat IP54 as the safer assumption for sweat, light rain and workouts, and not submerge them.
Who should buy it: runners, cyclists, gym-goers, walkers and anyone who wants music plus awareness of their surroundings. It's also a reasonable pick for people who find in-ear tips uncomfortable over long periods.
Who should skip it: anyone who wants deep isolation on a plane or a noisy train, or who needs marathon battery life from a single charge. If blocking out the world is the goal, an open-ear design works against you.
MAS CARNEY Over Ear Headphones: Who It's For
Despite the name, the MAS CARNEY "Over Ear Headphones" product is a headphone case — a hard-shell carrier for on-ear and over-ear headsets. The listing is upfront about it: you receive one case, and headphones are not included. So the buyer here is someone who already owns a folding headset and wants to stop it getting crushed, scratched or tangled at the bottom of a backpack.
The construction is the story. It's made from hard EVA with a polyurethane exterior in black, which resists bumps, scratches and light splashes. Inside, a soft loop-pile lining cushions the headset, and an elastic strap holds it in place so it doesn't rattle around. There's also a built-in elastic mesh pocket for cables and small accessories — a genuinely thoughtful touch if you've ever untangled a charging cable in a hurry. A nearly 360° zipper and a sturdy hand strap round out the design, and at 8.6" × 7.5" × 2.6" (21.7 × 19.5 × 6.6 cm) it's compact enough for daily carry, school bags and travel.
Compatibility is broad and clearly listed. It covers Sony models including the WH-CH520 and WH-CH720N, plus the WH-1000XM4, XM5 and XM6 and the ULT WEAR. It fits JBL Tune 510BT, 520BT, 720BT, 770NC and 670NC, along with Live 670NC and 770NC and the Junior line. It lists Soundcore by Anker options such as the Q20i, Q30, Q45, Space One and Space 2. Bose QuietComfort, QC35, QC45 and Ultra are covered, as are Skullcandy Crusher and Hesh models, Raycon Everyday and Fitness, TOZO HT3 and BERIBES. Because the fit depends on your specific headphone's folded dimensions, the brand explicitly tells you to confirm your model before ordering — and I'd take that seriously.
Who should buy it: students heading back to school, commuters, frequent travellers, and parents buying for kids who toss headphones into a bag. It's also a sensible add-on if you've just bought a folding headset you want to keep in good shape.
Who should skip it: anyone who doesn't own compatible folding headphones, anyone with large non-folding over-ears, and anyone shopping for something that actually plays audio. This is protection, not sound.
• Best for listening to music at all → CuiSuto Open Ear Earbuds. The MAS CARNEY product has no drivers, no battery and no Bluetooth.
• Best for protecting an existing headset → MAS CARNEY Over Ear Headphones. Hard EVA shell, padded lining, elastic strap, cable pocket.
• Best for running, cycling and workouts → CuiSuto. Lightweight 6g earbuds, sweat-resistant build, open-ear awareness of traffic and surroundings.
• Best for long listening sessions per charge → MAS CARNEY, in a sense — because it never runs out of battery. If you mean playback, CuiSuto gives 4 hours per charge and 36 hours total with the case.
• Best for travel and commuting → it splits. CuiSuto for awareness on a bike or on foot; MAS CARNEY if you're packing a folding headset and want it to arrive undamaged.
• Best for students and back-to-school → MAS CARNEY. The size, hand strap and compatibility list read like they were designed for a school bag.
• Best for clear calls and touch control → CuiSuto. Built-in microphone, touch buttons, Bluetooth 5.3 with a 10-meter range.
• Best for buyers who already own headphones → MAS CARNEY. It's the cheaper way to extend the life of gear you already like.
If I had to pick one, I'd buy the CuiSuto Open Ear Earbuds. In my opinion, a product that actually does something — plays audio, takes calls, tracks your power level on an LED display — delivers more value to more people than a case, however well made. The 14.2mm drivers, Bluetooth 5.3 and 36-hour total battery make it a complete, self-contained purchase.
That said, I'd only steer you to MAS CARNEY if you already own a compatible folding over-ear headset and your problem is protection, not sound. In that specific case it's the smarter buy, and the two aren't competing for the same dollar. Check the current price on Amazon for both before you decide — the numbers move, and your final call should be based on what you're actually solving for.
No. It's a hard protective case for on-ear and over-ear headphones. Headphones and other accessories are not included — you receive one case measuring 8.6" × 7.5" × 2.6". Check that your specific model is on the compatibility list before ordering.
Yes, that's their strongest use case. At roughly 6g per earbud with a lightweight polycarbonate build and an open-ear fit, they stay comfortable and let you hear traffic, gym announcements and training partners. Just note the waterproofing is listed inconsistently as IPX7 and IP54, so don't submerge them.
About 4 hours of playback per full charge, extending to 36 hours total with the charging case. A full charge takes roughly 4 hours, and the case's LED display shows remaining power so you're not guessing.
They solve different problems, so compare against your need, not against each other. If you want new wireless earbuds, CuiSuto is the functional purchase. If you already own a compatible folding headset and want to protect it, MAS CARNEY is the practical one. Check the current price on Amazon for each.
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.