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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 6 min read · Independent comparison
• KOUJAON Compatible — Biggest strength: it's a full 3-in-1 bundle (silicone case, bling flower keychain, cleaning pen) built specifically for AirPods Pro 2nd/1st Gen charging cases. Biggest trade-off: it fits only AirPods Pro, so it's useless if you own any other brand.
• WUNIAK Case — Biggest strength: a soft, oil-sprayed silicone shell with a metal carabiner and lanyard included, made for the Sony WF-C510. Biggest trade-off: it's not water resistant and won't fit AirPods or other models.
• For AirPods Pro owners who want protection plus a cleaning tool → KOUJAON Compatible.
• For Sony WF-C510 owners who want a clip-on travel case → WUNIAK Case.
• For a gift-ready, decorative pick → KOUJAON Compatible.
• For a utility-first, hands-free carry setup → WUNIAK Case.
This is a silicone skin made for one job: wrapping an AirPods Pro charging case. It's built for the AirPods Pro 2nd Generation (both USB-C and Lightning charging versions) and the AirPods Pro 1st Generation from 2019. That's the whole compatibility list. If your charging case is an AirPod Pro, it fits. If it isn't, it won't.
What you actually get is a bundle. There's the silicone case itself, a bling flower keychain, and a 3-in-1 cleaning pen with a metal tip, a soft brush and a flocking brush. The pen is the sleeper feature here. Anyone who's watched dust and earwax build up in the crevices of an AirPods Pro case knows a small brush and a metal tip are genuinely useful, and KOUJAON includes them rather than making you buy them separately.
The silicone is described as high-elasticity and soft, and the case is waterproof and washable. That combination matters for a charging case you handle dozens of times a day. Dirt wipes off, the surface resists fingerprints, and the shell absorbs bumps and scratches. The bling keychain is the design flourish — it makes the case easy to spot in a bag and gives it a look that reads more accessory than utility. In my opinion the pink silicone and flower charm make this one of the more gift-oriented options in this comparison, and the brand clearly leans into that with its "best gift for women" framing.
Who should buy it: AirPods Pro 1st or 2nd Gen owners who want drop-and-scratch protection, a spot in their bag they can find fast, and a cleaning pen in the same package. Also a reasonable pick if you're shopping for someone who already owns AirPods Pro and would use the charm-and-cleaner combo.
Who should skip it: Anyone with a Sony WF-C510, Galaxy Buds, or any non-AirPods-Pro charging case. The charging case itself is not included, so this is a case for your case, not a replacement. And if you dislike a dangling floral charm, the keychain is the whole aesthetic.
WUNIAK takes the opposite approach: pure utility, no decoration. This is a soft silicone cover sized for the Sony WF-C510 truly wireless in-ear Bluetooth earbuds and nothing else. The material is elastic silicone with an anti-shock, anti-slip finish, and the surface gets a special oil spray treatment for anti-fingerprint and dust resistance. That's a real difference in daily use — a matte, smudge-resistant shell hides the fingerprints that glossy rubber cases collect.
The carabiner is the headline feature. Each case ships with a metal clip, so you can hang the whole thing off a backpack, a belt loop, or a keychain. If you've ever dug through a bag for a loose earbud case, that clip solves the problem. A lanyard is included too, which gives you a second carry option, and a cleaning pen rounds out the kit.
Two practical details stand out. First, the case uses a double-sided adhesive design, which helps the buds stay put when you pull the case out of your pocket or bag. Second, you can charge through the case with a cable without removing the cover. On a day-to-day basis, that's the difference between a case you tolerate and one you actually keep on.
The honest trade-offs: it's listed as not water resistant, so it protects against scratches, bumps and drops but not moisture. And like the KOUJAON, the earbuds are not included. WUNIAK also notes a replacement policy for quality-related issues, which is worth knowing if you're ordering blind.
Who should buy it: Sony WF-C510 owners who want a slim, grippy shell, a clip for hands-free carrying, and cable charging without pulling the case off. Travelers in particular will get the most from the carabiner and lanyard.
Who should skip it: Anyone who doesn't own the WF-C510, and anyone who needs water resistance.
Side-by-Side: Which Should You Choose?
• Best for Sony WF-C510 owners → WUNIAK Case. Same logic in reverse; neither product crosses over.
• Best for charging convenience → WUNIAK Case. It supports cable charging without removing the cover.
• Best for water resistance → KOUJAON Compatible. It's rated waterproof and washable; WUNIAK is not water resistant.
• Best for carry options → WUNIAK Case. You get both a metal carabiner and a lanyard.
• Best for a gift or a decorative look → KOUJAON Compatible. The bling flower keychain and pink silicone are clearly aimed that way.
• Best all-in-one bundle → KOUJAON Compatible. Case, keychain and cleaning pen arrive together.
• Best for a clean, smudge-free finish → WUNIAK Case. The anti-fingerprint oil spray treatment is the detail that separates it.
If I owned AirPods Pro, I'd buy the KOUJAON Compatible. The cleaning pen alone justifies it for me — dust in an AirPods Pro case is a real, recurring annoyance — and the waterproof, washable silicone plus the keychain make it a case I'd actually keep on. If I owned the Sony WF-C510 instead, I'd take the WUNIAK Case without hesitating: the carabiner, lanyard and charge-through design fit how I carry earbuds when I travel. Neither is "better" in the abstract. The right one is the one that fits your earbuds.
how to charge earbuds case
Put the earbuds in the case, close the lid, and connect the case to a power source — either a cable or a wireless charging pad, depending on the case. For the KOUJAON Compatible, it's designed for the AirPods Pro wireless charging case. For the WUNIAK Case, you can charge the WF-C510 through the cover with a cable, so there's no need to remove it first.
how to charge case without earbuds
Yes, a charging case can be charged on its own — you don't need the earbuds inside. The case holds its own battery and will take a charge whether or not the buds are docked. Just plug in the case (or set it on a wireless pad if it supports one) and let it fill up.
how to charge jlab earbuds case
Neither case in this comparison is made for JLab earbuds. The KOUJAON Compatible fits only AirPods Pro 1st and 2nd Generation, and the WUNIAK Case fits only the Sony WF-C510. For JLab, you'd need a case built for your specific JLab model — check the compatibility line before buying anything.
how to charge apple earbuds case
For AirPods Pro, place the buds in the case, close the lid, and charge the case by cable or on a wireless charging pad. The KOUJAON Compatible is designed for the AirPods Pro 2nd Generation (USB-C and Lightning) and 1st Generation charging cases, and it's rated waterproof and washable, so a little surface moisture won't hurt it.
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