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Updated: 2026-09-24 · 7 min read · Independent comparison
• co2CREA Hard Case — biggest strength: A molded EVA and nylon shell with a custom insert that holds both standard and Mini-fit SHOKZ OpenRun, OpenMove and OpenSwim models, so the headphones you already own survive a backpack, a pool bag or a suitcase.
• co2CREA Hard Case — biggest trade-off: It makes no sound at all. It's a case only, and it does nothing unless you already have compatible bone conduction headphones.
• Xmenha Open Over Ear — biggest strength: A wireless Bluetooth 5.3 listening device with ultra-thin memory titanium ear hooks, an open-ear fit that keeps your ear canal clear, and a charging case that tops the buds up on the move.
• Xmenha Open Over Ear — biggest trade-off: Battery life is modest — about 4 hours per charge — and the manufacturer warns that you must use a low-power 5V/1A charger or risk permanent damage.
• Who each pick is for: Buy the co2CREA case if you're protecting existing SHOKZ-style headphones; buy the Xmenha buds if you need the headphones themselves.
This is a protective case, and it's a serious one. The exterior is hard EVA combined with nylon, and co2CREA describes it as waterproof, dustproof, drop-resistant and shockproof — 360° protection in their words. Inside, a custom-molded insert cradles the headphones so they don't rattle around, and a mesh pocket takes the loose stuff: charging cables, earplugs, small accessories. A smooth zipper closes it all up, and a soft interior lining is there specifically to prevent scratches.
The detail that matters most is the dual-size fit. Most cases assume one frame size, but this one is built to accept both standard and Mini versions of the SHOKZ OpenRun Pro, OpenRun Pro 2, OpenMove, OpenSwim and OpenRun Pro Mini — standard and small frames in the same tray. If you own two pairs across sizes, or you've upgraded from one to the other, that's a real advantage over a generic pouch.
Xmenha Open Over Ear: Who It's For
The Xmenha Open Over Ear is the actual product: a pair of open-ear wireless earbuds built around ultra-thin memory titanium ear hooks. Xmenha compares the hooks to memory-metal eyeglass frames — flexible, slim, and light enough that you're meant to forget they're there. That's the core pitch, and it's aimed at a specific person: someone who wears glasses and finds conventional on-ear or in-ear gear uncomfortable after an hour.
The open design is the second pillar. Nothing goes into your ear canal, so you stay aware of traffic, footsteps and conversation while you listen — which is exactly the argument for this category in outdoor running and commuting. The audio side uses a bone conduction driver with a 20Hz–20,000Hz frequency range and 32 ohm impedance, connected over Bluetooth 5.3 with a stated range of around 10 meters, and it works with both iOS and Android.
Battery is where you need to set expectations. Xmenha states 4 hours of continuous playback per charge and calls that "a necessary trade-off for the ultra-lightweight design." The included charging case adds roughly 2.5 extra full charges, taking total listening to about 12 hours, and the case itself refills in about an hour. The spec sheet also lists 5 hours average battery life, so treat 4–5 hours per session as the realistic range.
One manufacturer warning deserves repeating: charge only with a certified 5V/1A adapter, never above 5W. Xmenha explicitly says excessive charging power causes overheating and permanent damage, so a computer USB port or a low-power brick is the safe route. Buy these if you want open-ear listening, wear glasses, and prioritize comfort and awareness. Skip them if you need marathon battery life or you already own bone conduction headphones and only need somewhere to store them.
Side-by-Side: Which Should You Choose?
• You need to protect headphones you already own → co2CREA Hard Case. It's purpose-built for SHOKZ-style bone conduction frames in both standard and Mini sizes.
• You need headphones to listen with → Xmenha Open Over Ear. The co2CREA case contains no electronics and makes no sound.
• Best for travel and rough handling → co2CREA Hard Case. Hard EVA and nylon, waterproof and drop-resistant, with a molded insert and a mesh pocket for cables.
• Best for situational awareness outdoors → Xmenha Open Over Ear. The open-ear fit leaves your canal unblocked so surrounding sound still reaches you.
• Best for all-day listening sessions → neither, strictly. The Xmenha runs about 4 hours per charge and 12 hours with the case; if you need more, plan to recharge midday.
• Best for swimmers and gym-goers who already own OpenSwim or OpenMove → co2CREA Hard Case. It's sized for those frames and shrugs off splash, dust and impact.
• Best for someone starting from zero → Xmenha Open Over Ear. It's the only one of the two that actually plays audio.
If you already own SHOKZ-style bone conduction headphones and treat them as gear you carry everywhere, I'd buy the co2CREA Hard Case. The dual standard/Mini insert, the mesh pocket and the hard EVA shell solve a real problem — crushed and scratched headphones — and the travel-ready size means you'll actually use it. If you don't own that kind of headphone yet, or you specifically want an open-ear set for running and commuting while wearing glasses, I'd buy the Xmenha Open Over Ear instead, accepting the ~4-hour sessions and the strict 5V/1A charging rule as the price of the ultra-light design. In my opinion, most people searching this comparison need the Xmenha — a case is only worth buying once you have something to put in it.
how to wear air conduction headphones
Hook the ear pieces over the top of your ears so the driver rests just outside the ear canal, not inside it. The Xmenha's memory titanium hooks are designed to bend gently around your ear and sit alongside glasses temples; adjust until the hook feels light and stable, then run or walk to confirm they don't shift.
how to use air conduction headphones
Pair them over Bluetooth — the Xmenha uses Bluetooth 5.3 and works with iOS and Android — then control playback through the touch area on the buds. If pairing stalls, Xmenha's reset guide is: remove the device from your Bluetooth list, double-tap both earbuds and hold the touch area for 5 seconds until you hear the power-off tone, return them to the charging case, then take them out to reconnect.
how to put on air conduction headphones
Place the hook behind your ear first, then let the driver settle in front of the ear opening, and repeat on the other side. Keep the hook thin side down against the skin — the Xmenha hooks are deliberately slim so they sit under glasses arms without pinching. If it feels tight after ten minutes, the hook is too far forward.
how to pair goodmans air conduction headphones
Goodmans isn't covered by either data sheet here, so I can't give model-specific steps. The general method for this category is the same as the Xmenha: put the buds in pairing mode, open your phone's Bluetooth settings, select the device, and if auto-pairing fails on a recent iPhone, connect manually through Bluetooth settings.
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See also: HIFI WALKER Bone Conduction Swimming vs DUSONLAP Open Ear Earbuds, Generic Vintage Metal Over-Ear vs XMBYGY Pack Cute Case, POPUX Bone Conduction Headphones vs NUPLEA Open Ear Bone