How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a protective silicone shell made specifically for the Bose QuietComfort Earbuds II, Ultra and Ultra 2nd Gen charging case — with a one-piece build so the lid cover can't go missing — choose Olytop Bose QuietComfort Earbuds; if you need a fitted cover for the Anker Soundcore C50i open-ear charging case, with a detachable carabiner for clipping onto a bag, choose FIOPAZ Soundcore C50i.
• Olytop Bose QuietComfort Earbuds — biggest strength: Precision-molded, one-piece silicone design built around several generations of the Bose QuietComfort charging case, so the top cover stays attached and the front LED remains visible while charging.
• Olytop Bose QuietComfort Earbuds — biggest trade-off: It only fits the Bose models it was molded for, and it is a case-and-cleaner set rather than a one-size-fits-anything accessory.
• FIOPAZ Soundcore C50i — biggest strength: A glove-like silicone cover exclusive to the Anker Soundcore C50i, with precise cutouts for the charging port and status LED plus a detachable metal carabiner.
• FIOPAZ Soundcore C50i — biggest trade-off: It is not compatible with other Soundcore models or third-party earbuds, so it is a single-purpose purchase.
• Who each pick is for: Olytop for Bose QuietComfort Earbuds II/Ultra owners who want drop protection without losing the lid cover. FIOPAZ for Soundcore C50i owners who want a slim, grippy cover they can clip to a backpack.
The Olytop case is a silicone shell molded around the Bose QuietComfort Earbuds charging case. The important word there is molded. This isn't a stretchy pouch that happens to fit — it's shaped for the QuietComfort Earbuds II (2022), Ultra (2023) and Ultra 2nd Gen (2025), and the listing is upfront that the charging case itself is not included. If you own one of those Bose models, you're the target buyer.
Then there's the bundled 3-in-1 cleaning kit: a flocking sponge, a soft brush and a metal pen tip, about 3.95 inches long and 0.53 inches in diameter. It's meant for earbuds, keyboards, phone ports, camera crevices — the kind of grime that builds up in the mesh of earbuds. A metal keychain is included too, so you can hook the whole thing to a bag. In my opinion this is the better pick if you want protection plus a maintenance tool in one purchase and you own a compatible Bose case.
Skip it if you own anything other than the listed Bose models, or if you want a case that can be re-used if you switch earbuds later. This one is committed to one family of devices.
FIOPAZ Soundcore C50i: Who It's For
The FIOPAZ cover is built exclusively for the Anker Soundcore C50i charging case — the open-ear model. It's a slim silicone shell with a skin-like texture: soft to the touch, anti-slip in the hand, and resistant to fingerprints. The material is described as flexible and impact-resistant, providing 360° coverage against scratches, bumps and everyday wear. That's the honest pitch here — this is about daily abrasion, not surviving a fall down a staircase.
The practical details are where it earns its place. The cutouts are precise: the charging port and the status LED are both left accessible, so you can plug in and read the battery indicator without removing the cover. Anyone who has owned a badly cut silicone case knows how quickly "protective" turns into "annoying" when the port doesn't line up. FIOPAZ also throws in a 3-in-1 cleaning tool — sponge, brush and silicone tip — for the earbuds and the case interior.
The standout feature is the detachable metal carabiner. The C50i is an open-ear design, which means it's the kind of earbud people wear walking, cycling or moving around, and the case tends to travel clipped to a backpack strap or a belt loop rather than sitting in a pocket. A carabiner makes that natural. The case is also listed as slim fit and travel-friendly, which fits the same logic — it adds grip and protection without bulking up the case.
Who should skip it? Anyone who doesn't own the Soundcore C50i. FIOPAZ is explicit that this does not fit other Soundcore models or third-party earbuds. It's a single-device accessory, and if you're between earbuds right now, this isn't the purchase to make yet.
• Best for Bose QuietComfort Earbuds owners → Olytop Bose QuietComfort Earbuds. It's molded for the QC II (2022), Ultra (2023) and Ultra 2nd Gen (2025) charging cases.
• Best for Anker Soundcore C50i owners → FIOPAZ Soundcore C50i. Exclusively fitted, so the cutouts line up with the port and LED.
• Best for one-piece lid security → Olytop. The single-piece design means there's no separate top cover to lose.
• Best for carrying on a bag → FIOPAZ. The detachable metal carabiner is the more travel-oriented attachment; Olytop includes a metal keychain.
• Best for wireless charging without removing the case → Olytop. The listing calls out wireless charging with the front LED visible through the silicone.
• Best for a slim, low-bulk profile → FIOPAZ. It's described as slim fit with a skin-like, anti-slip, fingerprint-resistant texture.
• Best for cleaning tools included → Both. Each ships with a 3-in-1 kit; Olytop's uses a flocking sponge, soft brush and metal pen tip, FIOPAZ's a sponge, brush and silicone tip.
• Best if you might switch earbuds soon → Neither. Both are model-specific, so match the case to the earbuds you actually own.
If I owned Bose QuietComfort Earbuds II or Ultra, I'd buy the Olytop. The one-piece molding is the detail that matters to me — silicone cases fail most often at the lid, and this design removes that failure point entirely, while keeping the LED visible and wireless charging hassle-free. I'd pick the FIOPAZ if I owned the Soundcore C50i instead, mainly for the carabiner and the precise port and LED cutouts, which suit an open-ear earbud that lives clipped to a bag. Both are model-locked, so the decision is really about which case is sitting on your desk. Check the current price on Amazon before you commit, since these two sit in different accessory categories and the gap may surprise you.
FAQ
No. FIOPAZ states it is designed exclusively for the Anker Soundcore C50i and is not compatible with other Soundcore models or third-party earbuds.
Yes, in both cases. Olytop says the front LED stays visible and wireless charging works with the silicone on; FIOPAZ has precise cutouts around the charging port and status LED.
Both use shock-absorbing silicone aimed at drops, bumps and scratches, and both are described as heavy-duty protection. Olytop's edge is the one-piece build, which removes the loose top-cover problem common to two-part cases.
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.