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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
• iClever BTH20 — biggest strength: Active Noise Cancellation in a genuine over-ear design with a 40 mm dynamic driver and a detachable 3.5 mm cable for wired listening when Bluetooth isn't an option.
• iClever BTH20 — biggest trade-off: It's a bulky, closed-back headphone built mainly for kids and travel, so it's the wrong tool for running or cycling where you need to hear your surroundings.
• CXK Bone Conduction Headphones — biggest strength: An open-ear bone conduction design with a flexible titanium frame and IPX7 protection, so it survives sweat and rain while leaving your ear canals open.
• CXK Bone Conduction Headphones — biggest trade-off: Open-ear sound means no noise blocking and no wired fallback — there's no headphone jack at all, so it's wireless only.
• Who each pick is for: iClever BTH20 for kids, toddlers and travellers who want quiet; CXK for adult runners, cyclists and walkers who want awareness.
The iClever BTH20 is an over-ear kids' headphone that leans hard into one job: cutting down the noise around a child. It uses Active Noise Cancellation, and the earcups are built from ABS, leather and POK with an angular shape and a blue finish that matches the included blue carrying case. Inside sits a 40 mm dynamic driver with 32 ohm impedance, which is a normal, easy-to-drive spec for a headphone like this. The age range is listed as kid-to-adult, so it isn't strictly a toddler-only device — an adult can wear it too.
What it does best is flexibility. You get Bluetooth 5.4 with roughly 10 meters of range, but you also get a detachable 3.5 mm audio cable and a 3.5 mm jack. That matters on a plane, in a car with an older entertainment system, or on a tablet that doesn't do Bluetooth well — you can just plug in. The box also includes a USB-C charging cable, a protective case and a user manual, and the headphone carries a 12-month warranty. Controls are button-based, which is the right call for kids: physical buttons are far easier to find and press by feel than touch panels, and the BTH20 uses button control rather than touch.
Who should buy it: parents who want a single headphone for travel, school commutes and noisy homes, especially for a child who is sensitive to sound. The active noise cancellation plus the over-ear seal is the whole point. Who should skip it: anyone shopping for a workout headphone. It's 7.68 ounces with a closed over-ear design — that's a lot of headphone for a run, and blocking your ears is the opposite of what you want on a bike.
CXK Bone Conduction Headphones: Who It's For
The CXK Bone Conduction Headphones take the opposite approach entirely. There are no earcups and no ear canal seal — sound travels through a bone conduction driver, and your ears stay open. That single design choice defines everything else about it. You can hear traffic, a passing cyclist, a conversation at the trailhead or a car pulling out of a driveway while your music keeps playing. For running, cycling and walking near roads, that awareness is the feature, not a bonus.
Physically, it's built for movement. The frame is flexible titanium with soft silicone and ABS, the whole thing weighs 28 grams, and it wraps around the head for a secure fit. That's roughly a quarter of the weight of the iClever BTH20, and it's the reason open-ear headphones stay put during a run instead of bouncing. It's rated IPX7 for sweat and rain, uses magnetic charging, and refills in about 2 hours. CXK notes it is not suitable for swimming, so treat IPX7 here as weather-and-sweat protection rather than pool-ready. Playtime is listed at 10 hours per charge.
On the tech side, it runs Bluetooth 6.0 with a built-in microphone for calls, which is a newer Bluetooth generation than the BTH20's 5.4. The driver is a 15 mm bone conduction unit at 10 ohm impedance. It also pairs with the Boean App, which offers EQ adjustment — enhanced bass, balanced vocals and genre profiles — plus AI-generated song creation. The package includes earplugs, a cable and an adjustable strap. The age range is listed as adult, so this is not positioned as a kids' product. Controls are push-button, and noise control is listed as sound isolation rather than active cancellation — which is really just saying your ears are open by design.
Who should buy it: adult runners, cyclists, walkers and commuters who want audio without losing situational awareness. Who should skip it: anyone who needs to block out airplane engine drone or a loud classroom, and anyone who wants a wired option — there's no 3.5 mm jack here at all.
• Best for noise reduction → iClever BTH20. It has Active Noise Cancellation and a closed over-ear seal; the CXK is deliberately open.
• Best for staying aware of traffic → CXK Bone Conduction Headphones. Open-ear bone conduction is the entire reason to buy it.
• Best for kids → iClever BTH20. The age range covers kid-to-adult, it uses simple button controls, and it ships with a protective case.
• Best for running and cycling → CXK Bone Conduction Headphones. 28 grams, a flexible titanium frame and IPX7 sweat and rain protection.
• Best for wired fallback → iClever BTH20. A detachable 3.5 mm cable and a 3.5 mm jack mean it works when Bluetooth doesn't.
• Best for newer Bluetooth → CXK Bone Conduction Headphones. Bluetooth 6.0 versus Bluetooth 5.4 on the iClever.
• Best for long sessions away from a charger → CXK Bone Conduction Headphones, on paper. Its 10-hour figure is straightforward, while the iClever's battery spec is internally inconsistent.
• Best for calls on the move → CXK Bone Conduction Headphones. It has a built-in mic and app-based EQ; the iClever sheet doesn't list a microphone.
In my opinion, most people searching this comparison should buy the CXK Bone Conduction Headphones — if they're an adult who wants one headphone for running, cycling, walking and commuting, the open-ear design, 28 g weight, IPX7 rating and Bluetooth 6.0 cover more everyday ground. I'd point parents and frequent flyers to the iClever BTH20 instead, because active noise cancellation, a 40 mm driver, a wired option and a kids-first design are exactly what travel and noisy environments demand. Buy the one that matches your environment, not the one with the longer spec sheet. Check the current price on Amazon before deciding — both change, and the value math depends on it.
FAQ
No. That's the design intent. The open-ear structure keeps your ear canals free so you can hear traffic and conversation, and CXK lists noise control as sound isolation rather than active cancellation.
Yes. It includes a detachable 3.5 mm audio cable and a 3.5 mm headphone jack, so it works wired with tablets, in-flight systems and other non-Bluetooth sources.
The CXK Bone Conduction Headphones. It's rated IPX7 for sweat and rain and weighs 28 g with a flexible titanium frame. The iClever BTH20 is a 7.68-ounce over-ear travel headphone with no water-resistance rating listed. Note that IPX7 here does not mean swim-proof.
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