S66

The 100SEASHELL S66 wired earbuds are built for one thing: giving you a long 6.5-foot cord for TV watching and podcast listening without being glued to your device. The magnetic earpieces and slide volume control are nice touches, and comfort is solid with three ear tip sizes. Sound quality is fine for spoken word but weak for music, and there's no mic, so skip these if you need earbuds for calls or serious listening.

Sound quality lands in the bottom third of earbuds we've tracked, sitting at the 32nd percentile. That sounds harsh, but context matters. For podcasts, audiobooks, and TV dialogue, the S66 does the job. Vocals come through clear enough, and there's enough volume headroom for most content. Where it falls apart is music. Bass is thin, the highs can get a little harsh at higher volumes, and there's no real soundstage to speak of. If you're comparing these to even a $30 pair of wireless earbuds, the audio gap is noticeable.

Comfort is actually the strongest metric here at the 73rd percentile, which makes sense given the three ear tip sizes and the lightweight 41g build. The magnetic earpieces are a nice touch too. They snap together when hanging around your neck, so you don't have to deal with tangled cords every time you pick them up. The slide volume control is also more precise than the clicky buttons you get on most budget earbuds, letting you dial in exactly the level you want without fumbling for your phone or TV remote.

Stacked against the Soundcore P31i or EarFun Air Pro TW230B, the S66 looks like it's from a different era. Those wireless options give you Bluetooth convenience, better sound, and a mic for calls, all for $30 to $50. The JLab JBuds Pods ANC even throws in active noise cancellation at a budget price. But here's the thing: none of those have a cord. If you're plugging into a TV that doesn't have Bluetooth, or you just hate dealing with battery life and pairing, the S66 solves a problem those earbuds can't touch.

The JBL Live Free 2 and TOZO Crystal Pods are in a completely different league for sound quality and features, but they're also wireless and more expensive. The S66 isn't trying to compete with those. It's competing with the cheap wired earbuds you find at the drugstore checkout, and against those, the extra-long cord and magnetic earpieces give it a real edge. Just don't expect the audio to impress anyone.

Pricing on the S66 is all over the place depending on where you look. We've seen listings ranging from $20 all the way up to absurd territory near $4,900, which is clearly some third-party seller nonsense. At the $20 to $25 range, these are a reasonable buy for a very specific use case. You're getting a long cord, decent comfort, and a volume control that actually works well. But if you're paying more than $30, walk away. For that money you can get wireless earbuds with better sound, a mic, and no cord to tangle. The value proposition here is entirely tied to the cord length. If you don't need 6.5 feet of wire, there are better options at this price.

The 100SEASHELL S66 is one of those products that exists for a very specific person. You know who you are. You want wired earbuds with a cord long enough to reach from your TV to your couch without feeling like you're tethered to the entertainment center. At 6.5 feet, these deliver exactly that. The S66 skips the mic entirely, which is actually a feature if you just want something simple for late-night TV watching or podcast listening without waking anyone up.

For under $25, you get a pair of wired earbuds with a slide volume control, three sizes of silicone ear tips, and magnetic earpieces that snap together when you're not using them. The build feels sturdier than the price suggests, with a thick wire that doesn't immediately scream "I'll break in two weeks." But let's be real, these are budget wired earbuds. The sound is fine for spoken word content and casual listening, not for critical music sessions.

If you've been searching for long cord earbuds for TV use, the S66 is one of the few options that actually prioritizes cord length over everything else. Most earbuds give you 3 or 4 feet. These give you room to actually move around.

Skip the S66 if you need earbuds for phone calls, Zoom meetings, or voice chat. No mic means no calls, period. Music lovers should also look elsewhere. The sound is fine for podcasts and TV dialogue, but it's not going to satisfy anyone who cares about bass response or detail. If you plan to use these with a PC, be aware that some users report compatibility issues, so you might want to test them right away or consider a USB adapter. For wireless convenience and better all-around sound, the Soundcore P31i or EarFun Air Pro TW230B are better picks in the $30 to $50 range.

Should you buy the 100SEASHELL S66? If you need wired earbuds with a long cord for TV watching, podcast listening, or plugging into a device that sits far from your face, yes. At around $20, these do exactly what they promise. The cord is long, the volume control works, and the magnetic earpieces are genuinely handy. Buyers consistently mention the cord length and build quality as the main reasons they're happy with the purchase.

But if you care about music quality, need a mic for calls, or want something that works reliably with your PC, look elsewhere. The sound is mediocre at best for music, the lack of a mic is a dealbreaker for a lot of people, and the compatibility issues with some computers are a real annoyance. These are single-purpose earbuds, and they're good at that single purpose. Just know what you're getting into.