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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 6 min read · Independent comparison
If you want fresh, properly fitting silicone eartips that restore comfort and noise blocking on your JBL Endurance buds, choose Klowcok Ear Tips; if you need a protective silicone shell that keeps a JBL Tune 120/T125 charging case safe and attached to your bag, choose BOVUGAC Case.
• Klowcok Ear Tips — biggest strength: 12 pairs of soft silicone tips in three sizes (S/M/L), so you can match the fit to your ears and keep spares on hand.
• Klowcok Ear Tips — biggest trade-off: It's a consumable accessory, not a product on its own — no earbuds included, and it only fits the listed JBL Endurance models.
• BOVUGAC Case — biggest strength: A snug silicone cover plus a carabiner keychain, cleaning pen and lanyard, so the charging case stays protected and easy to carry.
• BOVUGAC Case — biggest trade-off: It's strictly a case for the JBL Tune 120 TWS and Tune T125 TWS — it does nothing for sound or fit, and earbuds aren't included.
• Pick Klowcok Ear Tips if your problem is comfort, seal or worn-out tips on JBL Endurance Run 2 / Peak 3 / Peak II / Race buds.
• Pick BOVUGAC Case if your problem is a bare, scratch-prone JBL Tune charging case you keep losing at the bottom of a bag.
The Klowcok Ear Tips set is a straightforward replacement-tip kit. You get 12 pairs of silicone eartips — nine black and three red — split across small, medium and large, with four pairs in each size. The material is soft and light, which matters more than it sounds: a stiff tip that doesn't seal properly is the single most common reason cheap TWS earbuds sound thin and leak noise. A softer silicone tip that actually sits in your ear canal is what gives you the noise blocking the listing describes.
The compatibility list is narrow on purpose: JBL Endurance Run 2, Endurance Peak 3, Endurance Peak II and Endurance RACE. That's a set of sport-focused buds, and it tells you who this is for — people who sweat in their earbuds, lose tips, or have one ear that never quite fit the stock medium. Because you get three sizes in one pack, you can experiment: medium in the left ear, large in the right, or swap to a fresh pair when a tip gets grimy. They're washable, so a rinse and a dry is usually enough to bring them back.
Who should skip it? Anyone whose earbuds aren't on that compatibility list, and anyone expecting the pack to include actual earbuds — it doesn't. It's also not a fix for a hardware problem. If your Endurance buds have a dead driver or a failing battery, new tips won't help. But if the issue is fit, seal, comfort or a lost tip, this is the cheap, sensible repair.
The BOVUGAC Case is a protective silicone cover made specifically for the JBL Tune 120 TWS and Tune T125 TWS charging cases. Not "fits most" — it's molded for those two, and BOVUGAC is explicit that it isn't compatible with other devices. If you own a different pair of buds, stop here.
What you actually get is a small kit: the case cover itself, a carabiner keychain, a cleaning pen and a lanyard. The silicone is described as skin-friendly and soft, with a silky feel in the hand, and the point of it is all-round protection — scratches, drops, shocks and bumps — without adding bulk. The green color with a nature-inspired pattern is a small thing, but it does make the case easier to spot than a plain black rectangle.
This is for the person whose JBL Tune case lives loose in a backpack or handbag. The carabiner clips it to a strap; the lanyard gives you a second way to hang it; the cleaning pen handles the gunk that builds up in the nozzle and charging contacts over time. It's a practical, low-drama accessory for someone who has already accepted that their charging case will get knocked around.
Who should skip it? Anyone who wants better sound, better fit or longer battery life — a case cover does none of that. It's also worth being clear that the earbuds themselves are not included, and if you carry your case in a tight jeans pocket rather than a bag, the keychain and lanyard may be more clutter than help.
Side-by-Side: Which Should You Choose?
• Best for fit and comfort → Klowcok Ear Tips. Three sizes across 12 pairs lets you dial in the seal your ears actually want.
• Best for noise blocking → Klowcok Ear Tips. A properly seated soft silicone tip is the mechanism here; the case can't touch this.
• Best for carrying convenience → BOVUGAC Case. Carabiner keychain plus lanyard, so the case clips to a bag instead of floating loose.
• Best for upkeep and hygiene → BOVUGAC Case, narrowly, because of the included cleaning pen — though the washable Klowcok tips are the other half of that routine.
• Best for spare-tip insurance → Klowcok Ear Tips. Twelve pairs means you're not hunting for a replacement the week one goes missing.
• Best for sport and workout buds → Klowcok Ear Tips. The compatibility list is all JBL Endurance models, which are built for movement.
• Best for commuters with JBL Tune buds → BOVUGAC Case. Tune 120/T125 owners with a bag full of loose gear get the most out of it.
In my opinion, the right pick comes down to what's actually broken. If your JBL Endurance buds are uncomfortable, leaking sound or missing a tip, I'd buy the Klowcok Ear Tips — 12 pairs across three sizes is real flexibility, and the fix is immediate. If your JBL Tune 120 or T125 case is getting scratched and lost, I'd buy the BOVUGAC Case instead, because the keychain, lanyard and cleaning pen solve a problem the tips can't touch.
They don't compete. They fix different halves of the same cheap-TWS experience — fit on one side, protection on the other. Buy the one that matches your actual annoyance.
what is tws earbuds
TWS stands for "true wireless stereo" — earbuds with no wire between the two buds. Each side connects independently, and they typically charge inside a small case. Both products here are accessories for that kind of setup: replacement tips for JBL Endurance models, and a cover for the JBL Tune 120/T125 charging case.
what is tws earbuds means
It means the left and right earbuds are fully separate, with no cable joining them. The charging case is what keeps them powered between uses. That's why a case cover like the BOVUGAC one matters — the case is the part you carry, drop and scratch, not the buds themselves.
how much is tws earbuds
Cost varies hugely by brand, features and whether you're buying buds or just accessories. The two items compared here are accessories, not earbuds, and their prices change over time — use the button on this page to check the current price on Amazon rather than relying on any figure you read elsewhere.
how to tws earbuds
The usual routine: charge the buds in their case, take them out and pair them once over Bluetooth, then reseat them in the case to power down and recharge. If they sound thin or keep falling out, the fix is often the tip, not the bud — which is exactly what the Klowcok set is for.
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