Audio-Technica Solid Bass ATH-CKS5TW

The Audio-Technica ATH-CKS5TW delivers the absolute best bass we've ever heard in a true wireless earbud, paired with a staggering 15-hour battery life in the buds themselves. But it's a one-trick pony with a dated design, no ANC, and poor water resistance. If you can find them for a steal around $50, they're a basshead's dream. For anyone else, modern all-rounders from Sony or Samsung are a much smarter buy.

Let's talk about that sound, because it's the main event. The ATH-CKS5TW doesn't just have good bass for a true wireless bud, it has genuinely best-in-class low-end reproduction. The 10mm drivers push out a warmth and physicality that makes most competitors sound thin by comparison. The frequency response reaching down to 5Hz is more of a technical flex than something you'll hear, but it speaks to the engineering focus here. In real-world listening, kick drums hit with authority and basslines have a rich texture that's addictive with genres like hip-hop, EDM, and rock. The high-frequency delivery, aided by those flexible silicone tips, keeps things from getting muddy, though the overall profile is definitely sculpted for fun rather than flat studio accuracy.

Where things get less impressive is everything surrounding that great sound. The Bluetooth 5.0 connection is solidly middle-of-the-pack, and we've seen reports of occasional dropouts that align with its 60th percentile connectivity score. The built-in mic with Qualcomm CVC is fine for a quick call in a quiet room, but it's nothing special, landing just above average. The real weak spot is the build and feature set. The IPX2 rating means these can handle a light drip of sweat or a bit of rain, but with a fitness score of just 37 out of 100, they are a poor choice for workouts. The bulky design and so-so 34th percentile build quality make them feel a bit dated next to sleeker, more polished rivals.

Stacked against modern heavyweights like the Sony WF-1000XM5, the Audio-Technica's age really shows. The Sony buds offer class-leading active noise cancellation, a much more refined and compact design, and a more balanced, detailed sound signature, though they can't match the sheer bass quantity of the CKS5TW. The Samsung Galaxy Buds3 Pro are another tough competitor, with a brilliant, comfortable fit, excellent transparency mode, and a more polished software experience. You'd pick the Audio-Technica over these two for exactly two reasons: you prioritize maximum bass above all else, and you need the absolute longest battery life possible from the buds themselves.

A more interesting comparison is with something like the EarFun Air Pro 4+. The EarFun buds pack ANC, a better water resistance rating, and a more modern feature set for a very competitive price. The Audio-Technica will still win on pure bass depth and earbud stamina, but the EarFun is a much better all-rounder for most people. The JBL Live Beam 3 also offers a more balanced package with a stem design and better call quality. The ATH-CKS5TW is a specialist, and you have to really want what it's good at to overlook its shortcomings.

Pricing on these is all over the map, with a wild spread from $54 to over $9,000 across different vendors. Obviously, ignore the absurd high end, that's just marketplace noise. The real value proposition kicks in if you can snag these at the lower end of that spectrum, around that $54 mark. At that price, getting best-in-class bass and phenomenal battery life is an absolute steal, even with the outdated design and missing features. If you're paying closer to the original MSRP, the value equation falls apart fast. For the same money, you can get a much more modern, feature-complete package from the competition. Your best bet is to hunt for a deal from a reputable seller like Amazon, where prices tend to be more grounded.

Audio-Technica's ATH-CKS5TW, part of their Solid Bass lineup, is a bit of an odd duck in the true wireless world. It launched a few years back with a clear mission: deliver the kind of deep, physical low-end that most tiny earbuds just can't manage, and do it with battery life that outlasts your longest workday. The spec sheet backs that up. You're looking at 15 hours of playback from the buds themselves, which was basically unheard of at the time, and a case that pushes total power to 45 hours. That's still impressive today, easily landing in the top tier of our database for stamina. But the real story here is the sound, where these 10mm drivers with their dual-layer diaphragms absolutely crush it, hitting the 100th percentile in our rankings. If you're a bass head who hates charging things, this spec sheet reads like a love letter.

Anyone who wants a modern, feature-rich pair of earbuds should look elsewhere. If active noise cancellation is important for your commute, or if you need a reliable pair of buds for the gym, the ATH-CKS5TW will disappoint you. The IPX2 rating is a dealbreaker for fitness, and the lack of ANC makes them a poor choice for noisy environments. You should also skip these if you value a sleek, low-profile design or rock-solid software stability. A much better all-around option would be the Samsung Galaxy Buds3 Pro for a great fit and features, or the Sony WF-1000XM5 for top-tier ANC and sound quality.

If your entire world is bass and you measure your day by how long your earbuds last, the ATH-CKS5TW is a niche champion. There's simply nothing else out there that delivers this level of low-end thump in a true wireless form factor while also refusing to die after a few hours. For a specific listener who loves bass-heavy music and wants a pair of buds they can wear on a long-haul flight without ever touching the charging case, these are a compelling, if quirky, choice. Just make sure you find them at a deep discount.

For everyone else, these are a tough sell. The lack of ANC, the bulky fit, the poor water resistance, and the buggy reputation make them feel like a relic from an earlier era of true wireless. Most people will be much happier with a more modern, well-rounded pair like the Sony WF-1000XM5 or even a budget-friendly option with ANC. Unless you are that specific bass-loving, battery-obsessed user, you should probably skip these.