How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a two-pack of soft, grippy silicone sleeves that keep a JBL Quantum TWS charging case clipped to your bag and protected from scratches, choose DAYJOY 2; if you need a semi-hard, water-resistant zippered case with an elastic strap and mesh accessory pocket for GravaStar Sirius Pro earbuds, choose CaseSack GravaStar Sirius Pro.
• DAYJOY 2 biggest strength: you get two soft silicone sleeves in one pack (red and green), each with a cutout so you can charge without peeling the cover off, plus an anti-lost carabiner for clipping to a bag.
• DAYJOY 2 biggest trade-off: it is a slim skin, not a structured case — soft silicone cushions against scratches and knocks, but it does not enclose the earbuds in a rigid shell.
• CaseSack GravaStar Sirius Pro biggest strength: a compact semi-hard zippered case (3.5 x 2.5 x 2 inches, 1.7 ounces) with PEVA shock-absorbing, water-resistant walls, an elastic strap to hold the device, and a mesh lid pocket for a cable.
• CaseSack GravaStar Sirius Pro biggest trade-off: it is sold as case only, one unit, and it is built around the GravaStar Sirius Pro — not a universal fit.
• Who DAYJOY 2 is for: someone who wants everyday scratch protection and hands-free carrying on a backpack or handbag, and likes having a spare sleeve.
• Who CaseSack GravaStar Sirius Pro is for: someone who wants one tidy, protective home for the earbuds plus a charging cable, especially for travel.
The DAYJOY 2 is a two-pack of soft silicone protective covers made for the JBL Quantum TWS earbuds. That compatibility note matters: this is a skin sleeve built around one specific charging case, not a generic pouch. The device itself is not included, so you are buying the cover only. In the pack you get two sleeves (a red one and a green one) plus two keychains, which means you can rotate colors or keep one as a spare.
What it does best is the small stuff. Soft silicone is scratch-proof, shock-proof and antiskidding, so the sleeve adds grip and takes the everyday scuffs that would otherwise land on your charging case. The cutout in the bottom is the detail I like most — you can plug in and charge the headset without wrestling the cover off every time. That sounds minor until you are doing it daily.
The anti-lost carabiner is the other reason to pick this. It clips to a handbag or backpack, which suits outdoor sports, running and hiking where you want the case attached to you rather than loose in a pocket. The slim fit keeps the whole thing low-profile.
Who should buy it: JBL Quantum TWS owners who want cheap, cheerful, grippy protection, a way to clip the case to a bag, and a spare sleeve in a second color. Who should skip it: anyone who wants a rigid, enclosed case with room for a cable, or anyone who does not own JBL Quantum TWS earbuds — the fit simply will not be right.
The CaseSack GravaStar Sirius Pro is a semi-hard carrying case designed for the GravaStar Sirius Pro Earbuds 5.2 TWS RGB earphones. It is a single black zippered case measuring 3.5 x 2.5 x 2 inches and weighing 1.7 ounces, so it stays compact and light while still holding its shape.
Where it wins is organization and structure. Inside, an elastic secure strap holds the device in the base, and a mesh pocket in the lid takes a charge cable or other small accessories. That combination turns a loose pair of earbuds into one tidy kit you can grab and go. The PEVA material is pressure- and hit-absorbing and water-resistant, and the semi-hard shell protects against shock, shake and scratches — the kind of bumps that happen in a bag.
The trade-offs are worth naming. It is sold as case only, and the device and accessories are not included. The design is purpose-built for the GravaStar Sirius Pro, so it is not a universal fit for other earbuds. And it is a carry-and-store case rather than a slim skin, so it adds a bit more bulk than a silicone sleeve.
Who should buy it: GravaStar Sirius Pro owners who want one protective, organized home for the earbuds and a cable, whether that is a drawer at home or a shoulder bag, purse or suitcase on the move. Who should skip it: anyone who wants minimal bulk, a clip-on sleeve, or a case for a different earbud model. There is a one-year warranty description on the listing, which is a nice bit of reassurance for a carry case.
• Best for scratch and grip protection on the go → DAYJOY 2. Soft silicone, antiskidding, slim fit.
• Best for structured, organized storage → CaseSack GravaStar Sirius Pro. Semi-hard shell, elastic strap, mesh pocket.
• Best for travel with a cable → CaseSack GravaStar Sirius Pro. The mesh lid pocket and water-resistant PEVA walls suit a bag or suitcase.
• Best for running, hiking and clipping to a bag → DAYJOY 2. The anti-lost carabiner is made for exactly this.
• Best for charging without removing the cover → DAYJOY 2. The bottom cutout lets you plug in with the sleeve on.
• Best if you want a spare or a second color → DAYJOY 2. Two sleeves and two keychains in the pack.
• Best if you want an enclosed case with impact cushioning → CaseSack GravaStar Sirius Pro. Shock-absorbing, semi-hard, zippered.
• Compatibility check first → DAYJOY 2 fits JBL Quantum TWS; CaseSack GravaStar Sirius Pro fits GravaStar Sirius Pro. Neither is universal.
In my opinion, the right pick comes down to how you carry your earbuds. If you own JBL Quantum TWS and want cheap, grippy, clip-on protection with a spare sleeve, I would buy the DAYJOY 2. If you own GravaStar Sirius Pro and want one compact, semi-hard case that keeps the earbuds and a cable organized and cushioned for travel, I would buy the CaseSack GravaStar Sirius Pro. Neither is a universal case, so match it to your earbuds first, then check the current price on Amazon before you commit.
FAQ
what is tws earbuds
how much is tws earbuds
That varies widely by model and brand, and this page does not quote prices. The two items compared here are accessories, not the earbuds themselves, so you should check the current price on Amazon for the exact figure.
how to tws earbuds
If you mean how to protect and carry TWS earbuds: slide them into a soft silicone sleeve like the DAYJOY 2 for scratch and grip protection, or zip them into a semi-hard case like the CaseSack GravaStar Sirius Pro for shock, shake and water resistance with room for a cable.
what is tws earbuds means
It simply means a pair of earbuds that connect wirelessly with no cable between them. Because both buds are separate, a protective case or cover — like the ones compared above — is how most people keep them safe and organized.
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.
See also: RCA EarSwitch 4in1 vs Rulbovs NE70: TWS Earbuds, LORELEI B-C6 vs CXPSUE Neckband Earbuds: Bluetooth Stereo, Creative Outlier Free Pro+ vs Amazon Renewed SHOKZ OpenRun