We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 6 min read · Independent comparison
If you want a rugged, waterproof hard shell that protects almost any SHOKZ bone-conduction headphone you already own, choose co2CREA Hard Case; if you need the actual wireless earbuds to listen with, choose MAMALADY Open Ear.
• co2CREA Hard Case — biggest strength: A hard EVA and nylon shell with a custom-molded insert that cradles both standard and mini SHOKZ bone-conduction headphones, plus 360° protection against dust, moisture and impacts.
• co2CREA Hard Case — biggest trade-off: It is case only. There are no headphones inside — you have to already own a compatible SHOKZ model for it to be useful.
• MAMALADY Open Ear — biggest strength: True wireless open-ear earbuds with air-conduction sound, an ear-hook fit, a dedicated charging base and Bluetooth 5 connectivity.
• MAMALADY Open Ear — biggest trade-off: No active noise control, and they are not built around protection — the included carrying case is lightweight ABS plastic, not a rugged shell.
• Buy the co2CREA Hard Case if you own SHOKZ OpenRun Pro, OpenRun Pro 2, OpenRun Pro Mini, OpenMove or OpenSwim and want one case that fits either size.
• Buy the MAMALADY Open Ear if you want wireless open-ear earbuds for workouts, commuting or the office and prefer to stay aware of what is going on around you.
This is a storage and protection product, full stop. The co2CREA case is built from hard EVA and nylon, a combination that gives it a rigid shell rather than the soft-sided pouch most headphones ship with. According to the spec sheet, that shell is waterproof, dustproof and drop-resistant, delivering 360° protection against impacts, splashes and dust. In real terms, that is the difference between tossing your headphones in a gym bag without a second thought and wrapping them in a sock.
The standout design choice is the dual-size compatibility. A custom-molded insert is cut to fit both standard and mini SHOKZ open-ear bone-conduction headphones, so the case accommodates OpenRun Pro, OpenRun Pro 2 Mini, OpenMove, OpenRun Pro Mini and OpenSwim Pro without you having to guess which size you own. There is also a mesh pocket inside for cables, earplugs and small accessories, and a soft interior lining plus a smooth zipper to keep everything scratch-free. A carry strap and a lightweight build — 0.15 kg, roughly 6.1 x 5.12 x 2.95 inches — make it easy to slip into a backpack, suitcase or tote.
MAMALADY Open Ear: Who It's For
The MAMALADY Open Ear is a different category entirely: it is the listening device. These are true wireless earbuds that sit outside the ear canal using an ear-hook shape, delivering sound through air conduction while leaving your ears uncovered. That design is the whole point — you hear your music or call audio while still hearing traffic, a training partner or a colleague walking up behind you.
The spec sheet backs up the everyday-use angle. Bluetooth 5 wireless with a 33-foot range covers a room or an open gym floor comfortably. The audio side uses a 13.5 mm dynamic driver with a 20 Hz frequency response, 32-ohm impedance and 98 dB sensitivity, and latency is listed at 50 milliseconds — a figure that matters if you watch video and do not want lip-sync to drift. Battery charging takes 2 hours, and the included charging base doubles as a resting spot so the earbuds are topped up and protected between sessions.
Controls are push-button and touch based, and there is no noise control — which is consistent with the open-ear concept rather than a flaw. Fit is handled by the over-ear hook, described as secure and stable during activity while staying comfortable for long stretches. Color options include black, blue, white/silver, pink and purple, so there is some personalization. Who should buy it: runners, cyclists, commuters and office workers who find traditional in-ear buds uncomfortable or who want to keep natural hearing intact. Who should skip it: anyone who needs noise cancellation to block out a loud commute, and anyone who wants a bombproof hard case — the MAMALADY carrying case is ABS plastic, and at 2.5 ounces it is there for convenience, not for drop protection.
Side-by-Side: Which Should You Choose?
• Best for protecting headphones you already own → co2CREA Hard Case. Hard EVA and nylon, molded insert, waterproof and dustproof.
• Best if you need headphones, not a case → MAMALADY Open Ear. It is the actual audio product; the co2CREA is case only.
• Best for situational awareness while listening → MAMALADY Open Ear. Air-conduction, outside-the-ear design leaves your ear canal open.
• Best for fitting both standard and mini sizes → co2CREA Hard Case. The dual-adapter molded insert handles either SHOKZ size without guesswork.
• Best for low-latency video and gaming → MAMALADY Open Ear. Its 50 ms latency spec is the relevant number here; the co2CREA has no audio specs at all.
• Best for travel organization → co2CREA Hard Case. Mesh pocket for cables and earplugs, soft lining, smooth zipper, carry strap, 0.15 kg.
• Best for color choice and style → MAMALADY Open Ear. Five colorways versus the co2CREA's single red finish.
• Best for a tidy desk or nightstand setup → MAMALADY Open Ear. The charging base gives the earbuds a home and keeps them charged.
These two do not really compete — they solve different problems, and that is exactly why the choice is easy once you know which problem you have. If you already own SHOKZ OpenRun Pro, OpenMove or OpenSwim headphones and your only complaint is that they rattle around loose in your bag, I would buy the co2CREA Hard Case. The hard EVA shell, molded insert and mesh pocket are precisely what that job needs. If you are shopping because you want open-ear audio in the first place, I would buy the MAMALADY Open Ear — the air-conduction design, Bluetooth 5, 13.5 mm driver and charging base make it the more complete purchase. In my opinion, the co2CREA is the better buy only for existing SHOKZ owners.
No. It is a carrying case only, designed to hold compatible SHOKZ open-ear bone-conduction headphones. You need to own a compatible model for it to be useful. It fits standard and mini sizes, including OpenRun Pro, OpenRun Pro 2 Mini, OpenMove and OpenSwim Pro.
No. The spec sheet lists no noise control, and the open-ear, air-conduction design deliberately leaves your ear canal uncovered so you stay aware of your surroundings. That is ideal for running and cycling, but not for blocking out a noisy train.
For the pool, the co2CREA Hard Case is the relevant pick — it is built around the SHOKZ OpenSwim family and rated waterproof and dustproof. For the gym floor, the MAMALADY Open Ear is the one you actually listen with, and its ear-hook fit is designed to stay stable during activity.
Ask one question: do you already own compatible SHOKZ headphones? If yes, the co2CREA adds protection you will use daily. If no, the MAMALADY gives you working audio hardware. Since this page does not list prices, check the current price on Amazon for each before deciding.
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