We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-17 · 6 min read · Independent comparison
If you want active noise cancellation, over-ear comfort and marathon battery life for a kid or teen, choose iClever BTH26; if you need a waterproof, open-ear headphone that keeps working underwater in MP3 mode, choose kelankeke Bone Conduction Headphones.
• iClever BTH26 biggest strength: Active Noise Cancellation rated to cut up to 36 dB of noise, plus up to 60 hours of playback and a 10-minute quick charge that yields 4+ hours.
• iClever BTH26 biggest trade-off: It is a traditional over-ear, sealed headphone, so it blocks your ears and ambient sound on purpose — the opposite of what a swimmer or open-ear runner wants. ANC also does not work in wired mode.
• kelankeke Bone Conduction Headphones biggest strength: IPX8 waterproofing with a 32GB built-in MP3 mode, so it plays music with no Bluetooth connection at all — the only way to listen while submerged.
• kelankeke Bone Conduction Headphones biggest trade-off: Only up to 10 hours of battery, no headphone jack, and passive (not active) noise cancellation, so it will not isolate you from a noisy room or airplane cabin.
• Choose iClever BTH26 if the buyer is a kid, teen or adult who wants quiet focus, long listening sessions and a wired backup option.
• Choose kelankeke if the buyer swims, runs or cycles and needs open-ear awareness plus waterproofing.
The BTH26 is a closed-back, over-ear kids' headphone with a very specific job: make listening comfortable for hours and cut down the noise around you. iClever rates the combined ANC and passive noise cancellation at up to 36 dB of reduction, which is the headline feature here. On a school bus, in a busy kitchen, or on a flight, that's the difference between hearing the music and hearing everything else. Just remember the note in the specs: ANC is unavailable in wired mode, so the noise cancelling only does its thing over Bluetooth.
Battery is the other reason to pick it. The sheet lists 60 hours of average life without ANC, and a 10-minute quick charge that gets you 4+ hours — genuinely useful when a kid remembers to charge right before a car trip. A full charge takes 2.5 hours over USB-C. The 40mm dynamic drivers cover a 20 Hz–20,000 Hz range at 32 ohm, which is a normal, easy-to-drive spec that suits music, games and video. Bluetooth 5.4 with a 10-meter range is current and stable, and there's a 3.5mm jack plus a detachable cable for airplane screens and tablets when wireless isn't allowed.
Who should buy it: parents buying for a kid or teen (the age range covers kid, teen and adults), anyone who wants one headphone for home, travel and homework, and anyone who values a wired fallback. Who should skip it: swimmers, people who need to hear traffic while running, and anyone who hates the feeling of sealed ears. It's also 230 g, which is fine for an over-ear but noticeably heavier than an open-ear design. The purple ABS build with a spunlace storage bag and leather carrying case reads as a kids-first product, not a fitness accessory. In my opinion, that's exactly the right call for its audience.
This is a completely different animal. The kelankeke E9 Pro is an open-ear, bone conduction headphone built around water. The IPX8 rating is the real story: it's rated fully waterproof, sweatproof, rainproof and dustproof, and the manufacturer explicitly describes using it with a swim cap, goggles and earplugs for swimming, snorkeling, fishing and boating. Because Bluetooth doesn't travel through water, the headphone carries 32GB of internal memory — roughly 8,000 songs in MP3, WMA, FLAC, APE or WAV — and you double-click the power button to switch into MP3 mode once you're in the water. That single design decision is what makes it work where almost nothing else does.
The rest of the spec sheet is fitness-focused. At 27.8 g it's barely there, and the open-ear shape means you keep hearing your surroundings while you run or ride — the safety argument for bone conduction. Bluetooth 6.0 is listed with a 10-meter range and support for iOS and Android, along with calls and audiobooks. Battery is up to 10 hours of playback with a 2-hour magnetic charge, and that same magnetic cable lets you mount the headphone as USB storage so you can drag songs over from a computer. Controls are buttons and app-based, with passive noise cancellation — meaning it relies on the open-ear fit rather than electronics to manage sound.
Who should buy it: swimmers first and foremost, plus runners, cyclists, gym-goers and anyone who wants music without plugging their ears. Who should skip it: anyone who wants to block out noise on a plane or in a loud office, anyone who needs a 3.5mm jack (there is none), and anyone who wants more than a day-and-a-bit of listening per charge. It's also worth knowing the setup has a learning curve — the manual spends real space on switching modes and re-copying songs if files won't play, so a patient user gets more out of it. In my opinion, that's a fair trade for a headphone that works underwater.
Side-by-Side: Which Should You Choose?
• Best for noise cancelling → iClever BTH26. Up to 36 dB of ANC+PNC reduction versus passive-only noise control on the kelankeke.
• Best for swimming and water → kelankeke. IPX8 waterproofing plus 32GB MP3 mode; the BTH26 has no water rating at all.
• Best for situational awareness → kelankeke. Open-ear design keeps traffic and surroundings audible; the BTH26 is a sealed over-ear.
• Best for travel and shared spaces → iClever BTH26. ANC plus a detachable 3.5mm cable for airplane entertainment systems.
• Best for long listening sessions without charging → iClever BTH26. The 10-minute quick charge alone covers a short trip.
• Best for all-day wear weight → kelankeke. 27.8 g versus 230 g; you'll notice the difference on a run.
• Best for kids → iClever BTH26. The theme is literally kids, the age range includes kid and teen, and it ships with a storage bag and case.
• Warranty consideration → iClever BTH26. 12 months versus a 90-day return window and 1-year warranty on the kelankeke.
If I were buying for a kid, a teen or myself for home, school and travel, I'd buy the iClever BTH26. The combination of up to 36 dB of noise reduction, 60 hours of playback and a wired backup covers far more everyday situations, and the kids-first design and 12-month warranty make it the lower-risk pick. I'd only go with the kelankeke if swimming is the actual point — in that case nothing on the BTH26 side competes, because IPX8 plus built-in MP3 storage is a capability, not a feature.
The kelankeke, without question. It carries an IPX8 waterproof rating and a 32GB MP3 mode specifically because Bluetooth doesn't work underwater. The iClever BTH26 has no water rating in its specs, so it isn't a swimming headphone.
No. The manufacturer states Bluetooth is not supported underwater, so you switch to MP3 mode by double-clicking the power button before you get in. Load your songs onto the 32GB storage first using the magnetic cable and a computer.
The iClever BTH26. It uses active noise cancellation plus passive isolation, rated up to 36 dB, though ANC only works in wireless mode. The kelankeke relies on passive noise cancellation only, which is limited by its open-ear fit.
I don't quote prices here because they change — use the "Check latest price on Amazon" button on this page for both. On specs alone, the iClever BTH26 gives you more hours, ANC and a wired option, while the kelankeke gives you waterproofing and a 32GB music player. Value depends entirely on whether you swim.
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