We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want a two-pack of silicone covers in neutral black and white for JBL Tune 130NC TWS earbuds, choose Seadream Silicone Case; if you need slim silicone sleeves in red and green for JBL Quantum TWS earbuds, choose DAYJOY 2. These are two different products for two different earbuds, and that single fact decides most of the buying question before anything else does. Both are cheap ways to protect a charging case you already own — neither one is an earbud. That distinction matters more than any spec on this page.
• Seadream Silicone Case — biggest strength: a full-coverage soft silicone shell with a dust-plug over the charging port, plus a metal carabiner, sold as a two-pack in black and white.
• Seadream Silicone Case — biggest trade-off: it only fits the JBL Tune 130NC TWS, so if you own any other earbuds it is simply the wrong purchase.
• DAYJOY 2 — biggest strength: a slim-fit silicone sleeve with a charging cutout and an anti-lost carabiner, sold as a two-pack in red and green for people who want their case to stand out.
• DAYJOY 2 — biggest trade-off: it is made for the JBL Quantum TWS, and its compatibility listing is narrower and more specific than a general "JBL series" reader might assume.
• Who each pick is for: Seadream for Tune 130NC owners who want maximum protection and a low-key look; DAYJOY for Quantum TWS owners who want a slimmer sleeve and brighter colors.
The Seadream Silicone Case is a protective cover — a pouch, in the manufacturer's own words — built exclusively for the JBL Tune 130NC TWS earbuds. The material is soft silicone rubber, and the design brief is clearly about absorbing everyday punishment: bumps, drops and scratches. There is a bottom dust plug that seals the charging port when you are not using it, which is the kind of detail that matters if the earbuds live loose in a bag or a jacket pocket. The shell is rated waterproof, and the listing describes it as skin-friendly, odorless, lightweight, dust-proof and shockproof, with a 360-degree full-protective approach.
Who should buy it: someone who owns JBL Tune 130NC TWS earbuds, wants serious coverage rather than a fashion statement, and likes the idea of a spare cover or a color swap between black and white. The dust plug and the full-wrap silicone make it the more protective of these two on paper. Who should skip it: anyone whose earbuds are not the Tune 130NC. There is no partial compatibility here — the fit is specific, and a specific fit is exactly why it works.
DAYJOY 2: Who It's For
The DAYJOY 2 is also a two-pack of soft silicone covers, but it is aimed at the JBL Quantum TWS earbuds instead. The material spec is similar — high-quality soft silicone, described as scratch-proof, shock-proof, anti-skidding and durable — and the standout feature in the design is the charging cutout at the bottom, which lets you top up the headset without removing the cover. That is the same convenience idea as Seadream's, just executed as an open cutout rather than a dust plug. DAYJOY does not claim a sealed port, so if keeping grit out of the charging opening is your priority, that difference is worth weighing.
Where DAYJOY 2 differentiates itself is style and fit. The two sleeves come in red and green with a nature-inspired pattern, which is a very different proposition from Seadream's solid black and white. The form factor is listed as slim fit, so it hugs the case closely rather than adding bulk. Each cover ships with a keychain, and the anti-lost carabiner can be fixed to a handbag or backpack — the listing specifically calls out outdoor sports, running and hiking as use cases. The package includes two protective cases and two keychains. The age range is listed as adult.
Who should buy it: JBL Quantum TWS owners who want a thin sleeve, like the idea of spotting their earbuds instantly in a bag thanks to red and green, and want a carabiner for clipping onto gear during a run or a hike. Who should skip it: anyone with the Tune 130NC or any earbud outside the Quantum TWS line. One caution worth flagging honestly — the compatibility field mentions "JBL series" broadly, but the product title and the first bullet are unambiguous that this is for the JBL Quantum TWS. Trust the specific line, not the general one. If your model is not the Quantum TWS, keep looking.
• Best for JBL Tune 130NC TWS owners → Seadream Silicone Case. It is the only one of the two built for that model.
• Best for JBL Quantum TWS owners → DAYJOY 2. Same logic in reverse; the fit is model-specific.
• Best for maximum port protection → Seadream Silicone Case. The bottom dust plug seals the charging port; DAYJOY uses an open charging cutout instead.
• Best for a slim, low-bulk feel → DAYJOY 2. Its listed form factor is slim fit.
• Best for a discreet, neutral look → Seadream Silicone Case. Solid black and white covers a wider range of tastes.
• Best for visibility and personality → DAYJOY 2. Red and green with a nature pattern is hard to lose in a bag.
• Best for outdoor carrying → DAYJOY 2. Its carabiner is explicitly pitched at running, hiking and outdoor sports.
• Best for a spare cover included → both. Each package contains two covers and a clip or keychain, so you get a backup either way.
In my opinion, the deciding factor here is not the silicone — both are soft, shock-absorbing covers with a carabiner and a two-pack. It is which earbuds you actually own. If you have the JBL Tune 130NC TWS, I would buy the Seadream Silicone Case: the dust plug over the charging port and the full-wrap 360-degree design make it the more protective of the two, and black plus white will suit almost anyone. If you have the JBL Quantum TWS and want something thinner that stands out, the DAYJOY 2 is the one I would pick. Check the current price on Amazon before you commit, since that is the one number that can shift either decision.
what is tws earbuds
TWS stands for "true wireless stereo" — earbuds that connect to your phone with no wire between the two buds and no cable to the device. Both products on this page are protective covers for TWS earbud charging cases, not the earbuds themselves. The Seadream fits the JBL Tune 130NC TWS; the DAYJOY 2 fits the JBL Quantum TWS.
what is tws earbuds means
It means the left and right earbuds each have their own wireless connection and are not joined by a cable, only by the charging case they sit in. That case is what these silicone covers protect — the Seadream adds a sealed dust plug over the port, while the DAYJOY 2 leaves an open cutout for charging. Neither cover changes how the earbuds sound or connect.
how much is tws earbuds
The earbuds themselves are a separate purchase from these covers, and pricing varies by model and seller, so there is no fixed figure to quote. This page compares the silicone cases only: Seadream's two-pack in black and white, and DAYJOY's two-pack in red and green. Use the button on this page to check the current price on Amazon for whichever one matches your earbuds.
how to tws earbuds
If you mean how to protect them, the process is the same for both: slide the soft silicone cover over the charging case, then use the included carabiner or keychain to clip it to a bag. Seadream says installation is easy and that you can charge from the bottom without removing the cover; DAYJOY uses a bottom cutout for the same purpose. The only real step that matters is confirming your earbud model first.
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