We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-03 · 7 min read · Independent comparison
If you want a slim, no-nonsense silicone shell for your Soundcore P30i that stays on through daily wear and lets you charge without peeling it off, choose WUNIAK Case; if you need a colorful cartoon cover for your AirPods 4 that comes with three cases in one pack and a more detailed cleaning tool, choose XMBYGY Pen Case.
• WUNIAK Case — biggest strength: Soft, elastic silicone with an oil-spray finish that resists fingerprints and dust, plus a metal carabiner, lanyard and a cleaning pen in the box. Charges with the cable on, no need to remove the shell.
• WUNIAK Case — biggest trade-off: One case, one color (black), for one model only (Soundcore by Anker P30i). If you own anything else, it will not fit.
• XMBYGY Pen Case — biggest strength: A three-pack of cartoon-skinned silicone cases for AirPods 4, plus a 3-in-1 cleaning pen with flocking sponge, soft brush and metal tip. A natural gift or a way to rotate looks.
• XMBYGY Pen Case — biggest trade-off: It is locked to AirPods 4 (2024) only, and the three cases are the same cartoon theme rather than three distinct color choices.
• Pick WUNIAK Case if you own the Soundcore P30i and want one durable, low-profile protective carry solution.
• Pick XMBYGY Pen Case if you own AirPods 4 and want variety, a playful look, and a spare case or two to share.
WUNIAK Case is a focused product. It does one thing: wrap a Soundcore by Anker P30i charging case in soft silicone that absorbs bumps and resists scratches. The material is elastic and the surface carries a special oil spray treatment, which is the part I find genuinely useful day to day — silicone shells usually turn into lint and fingerprint magnets, and this finish is designed to fight exactly that.
The details show a buyer-first mindset. There is a metal carabiner so you can clip the case to a backpack, a belt loop or a keychain instead of burying it in a pocket. There is a lanyard for wrist carry. There is a cleaning pen for the earbud mesh and gaps. And the installation relies on a highly sticky double-sided adhesive pad, which is the detail that matters most: it keeps the shell attached to the charging case so you do not lose the cover when you pull the whole thing out of a bag.
Charging is where this design earns its keep. You do not remove the case cover to plug in a cable — you charge right through it. For anyone who tops up the P30i on a desk or nightstand, that removes a small but constant annoyance.
XMBYGY Pen Case: Who It's For
XMBYGY Pen Case takes the opposite approach: more, and more fun. You get three silicone cases sized specifically for AirPods 4 (2024), dressed in a cartoon pattern skin. The listing is explicit about compatibility, and I appreciate that bluntness — this fits AirPods 4 and nothing else. Not AirPods 1st or 2nd generation, not AirPods 3rd generation, not AirPods Pro or AirPods Pro 2. If you are unsure which model you own, check before buying, because a silicone shell that is a millimeter off is useless.
The three-pack changes how you use the product. You can keep one on the earbuds, stash one in a bag, and give one away. The listing leans into this directly, calling it a good gift for family and friends, and I agree that is the real value here — it is an easy, low-risk present for a teen or a friend who just bought AirPods 4. The case colors in this configuration are NUT, FSL and Toast, all in the same cartoon theme, so you are getting variety in wear-and-tear backup rather than three wildly different looks.
The included cleaning pen is a step up in detail from a basic brush. It combines a flocking sponge, a soft brush and a metal pen tip, which covers the three jobs that actually matter: knocking dust off the mesh, sweeping the crevices, and prying out compacted earwax or grime around the nozzle. The silicone is described as impact-resistant and non-scratching on the inside, so it will not scuff the charging case itself or loosen over time.
Who should buy it: AirPods 4 owners who want a cute, distinctive cover, people shopping for a small gift, and anyone who wants a spare case in reserve. Who should skip it: owners of any other AirPods generation, and buyers who want a single understated case rather than a cartoon theme.
• Best for Soundcore P30i owners → WUNIAK Case. It is built for that model and nothing else.
• Best for AirPods 4 owners → XMBYGY Pen Case. Same logic in reverse; the fit is model-specific.
• Best for a slim, discreet look → WUNIAK Case. Black silicone, nature theme, low profile.
• Best for a playful or giftable look → XMBYGY Pen Case. Cartoon skins, explicitly pitched as a gift.
• Best for charging convenience → WUNIAK Case. The cable charges straight through the cover, so you leave it on.
• Best for getting more than one → XMBYGY Pen Case. Three silicone cases in the pack versus one.
• Best for deep cleaning tools → XMBYGY Pen Case. Flocking sponge, soft brush and metal tip cover more ground than a standard cleaning pen.
• Best for securing the case to a bag → both. Each includes a carabiner clip, so neither has an edge here.
In my opinion, this comes down to one question: which earbuds do you actually own? If it is the Soundcore by Anker P30i, I would buy the WUNIAK Case — the charge-through design, the adhesive that keeps the shell attached, and the anti-fingerprint finish are exactly what a daily-carry case needs, and the lanyard plus carabiner give you two ways to keep track of it. If it is AirPods 4, I would buy the XMBYGY Pen Case, mainly for the three-pack and the more capable cleaning pen. Neither is a compromise on materials — both are silicone with a carabiner. Pick by fit first, then by look.
how to charge earbuds case
Put the earbuds back in the charging case and connect the case to a power source with its cable. With the WUNIAK Case, you can leave the silicone cover on and charge right through it — no need to remove the shell. The XMBYGY cover is a silicone sleeve as well, so it does not block the charging port.
how to charge case without earbuds
A charging case can be topped up with the earbuds removed; you are simply charging the case battery. Both covers here are designed to stay on during that process, and each pack includes a carabiner so the case can hang nearby while it charges. Just make sure the cable is fully seated in the port opening.
how to charge jlab earbuds case
Neither case in this comparison fits JLab earbuds. WUNIAK Case is made only for the Soundcore by Anker P30i, and XMBYGY Pen Case is made only for AirPods 4 (2024). For a JLab charging case, you would need a cover sized to that specific model instead.
how to charge apple earbuds case
For AirPods 4, place the buds in the case and connect it to a charger as usual. The XMBYGY silicone cover is designed to stay fitted while you do this, and the pack includes a cleaning pen so you can clear dust from the case and mesh afterward. Note it does not fit AirPods 1st, 2nd or 3rd generation, or AirPods Pro.
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