We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 7 min read · Independent comparison
If you want all-day comfort with a featherweight open-ear fit for running, cycling and everyday listening, choose Xmenha Open Ear Out; if you need a waterproof bone conduction headphone with built-in MP3 storage for swimming, choose MUXUN Bone Conduction Headphones.
• Xmenha Open Ear Out — biggest strength: a genuinely lightweight, silicone-based open-ear clip design with a claimed 400mAh battery and up to 30 hours of playtime, plus Bluetooth 5.3 and USB-C charging.
• Xmenha Open Ear Out — biggest trade-off: it's a general-purpose open-ear bud, so it isn't built for swimming and there's no on-board music storage.
• MUXUN Bone Conduction Headphones — biggest strength: IP68 waterproofing rated for submersion up to two meters for two hours, a 32GB MP3 player mode, and Bluetooth 5.4.
• MUXUN Bone Conduction Headphones — biggest trade-off: only 8 hours of battery life, and you have to manage MP3 files manually by cable.
• Pick Xmenha Open Ear Out if you want long battery life and a light everyday fit.
• Pick MUXUN Bone Conduction Headphones if you swim and want music without your phone nearby.
The Xmenha Open Ear Out is a wireless open-ear headphone that sits outside the ear canal rather than plugging into it. That's the whole point of the design, and it's why this one is aimed squarely at people who want to keep an ear on the world around them. Whether you're cycling, walking, running, in the gym, or even driving, the open-ear placement means ambient sound still reaches you. If safety and awareness during outdoor movement matter to you, that's the core argument for this product.
The second thing that stands out from the spec sheet is weight and materials. The buds are made from soft silicone with an ear-clip style surround and a streamlined, sinking shape. Xmenha positions this as painless because nothing enters the ear canal, and specifically calls out small ears and people with high comfort demands. The frequency range is listed at 20 Hz – 20,000 Hz, and the driver type is listed as bone conduction, though the product is marketed as an "air bone conduction" hybrid open-ear design. It uses Bluetooth 5.3 with a range of about 10 meters, has a built-in microphone for calls, and charges over USB-C.
Battery is where this one looks most attractive on paper. The listing mentions a 400mAh battery with 6–8 hours of continuous music in one place and up to 30 hours in another, with the average battery life field listed at 30 hours. I read that as: expect a solid single-session runtime, with the bigger number reflecting total playtime with charging. It's also listed as waterproof and sweatproof with a fully enclosed sound cavity, so daily sweat and rain shouldn't be a problem.
Who should buy it: runners, cyclists, gym-goers, and anyone who finds in-ear buds uncomfortable or wants to stay aware of traffic and surroundings. It also suits people with smaller ears who struggle with traditional earbuds.
Who should skip it: swimmers. There's no MP3 storage and no submersion rating here, so pool use isn't what this was designed for. If you need music in the water without a phone, this isn't your pick.
The MUXUN Bone Conduction Headphones are a different animal entirely. This is a bone conduction headphone that transmits sound through your skull, leaving your ears fully open, and it's clearly engineered around one headline use case: swimming. The IP68 rating with a triple-sealed design means it can be submerged up to two meters deep for two hours, and MUXUN explicitly lists pools, ocean, and freshwater lakes as fine. That's a serious waterproofing claim, and it's the reason this product exists.
The clever part is the dual-mode setup. Short-press the M button for two seconds to switch between Bluetooth and MP3 mode. There's 32GB of built-in memory, so you load songs onto the device by cable from a computer, switch to MP3 mode, and swim with no phone and no Bluetooth signal to worry about. MUXUN even notes directly that Bluetooth isn't practical underwater and that you should use MP3 format while swimming. That's honest, practical guidance rather than marketing fluff.
On the audio side, the driver is listed as bone conduction with a 200 Hz – 20,000 Hz frequency range and 50-ohm impedance. Note that the low end starts at 200 Hz rather than 20 Hz, which tells you this isn't a bass-forward headphone — bone conduction rarely is. What it does offer is environmental noise cancellation, a built-in mic for calls, and Bluetooth 5.4 with roughly 10 meters of range (the listing also mentions about 33 feet). Battery life is listed at 8 hours, with a 10-minute quick charge giving up to 3 hours of listening.
The fit is described as slim, lightweight and ergonomic, designed to stay put through workouts and to sit alongside swim caps, goggles, sunglasses and bike helmets. Physical buttons handle mode switching, volume and playback — a sensible choice when your hands are wet.
Who should buy it: swimmers first and foremost, plus runners, cyclists and gym users who want open-ear awareness and don't mind trading battery life for waterproofing and on-board storage.
Who should skip it: anyone who wants maximum battery life or who doesn't need MP3 storage. If you never get in the water, you're paying for capability you won't use.
• Best for battery life → Xmenha Open Ear Out. Its 400mAh battery and up to 30-hour rating dwarf the MUXUN's 8 hours.
• Best for swimming → MUXUN Bone Conduction Headphones. IP68, two-meter submersion for two hours, and MP3 mode with no phone needed.
• Best for phone-free listening → MUXUN Bone Conduction Headphones. The 32GB of built-in memory is the deciding feature here.
• Best for all-day comfort and light weight → Xmenha Open Ear Out. Soft silicone, clip-style fit, and a design explicitly aimed at small ears and long wear.
• Best for water resistance in daily life → MUXUN Bone Conduction Headphones. IP68 is a far tougher rating than "waterproof and sweatproof" for rain and sweat.
• Best for newer Bluetooth → MUXUN Bone Conduction Headphones. Bluetooth 5.4 versus 5.3 on the Xmenha.
• Best for simplicity → Xmenha Open Ear Out. Charge it, pair it, wear it. No file management, no mode switching.
• Best for bass-heavy listening → neither, honestly. The Xmenha lists 20 Hz – 20 kHz, but both are open-ear designs, so deep bass isn't the strength of either.
In my opinion, the right answer comes down to one question: do you swim? If you do, I'd buy the MUXUN Bone Conduction Headphones. The IP68 triple-sealed build, the 32GB MP3 player and the phone-free pool sessions are capabilities the Xmenha simply doesn't have, and no amount of battery life makes up for that. If you don't swim, I'd buy the Xmenha Open Ear Out. It's lighter, it lasts far longer per charge, it charges over USB-C, and for running, cycling and daily wear it covers everything you actually need. Match the product to the activity, not the other way around.
FAQ
Yes. That's the point of the 32GB built-in memory. You transfer songs by cable, switch to MP3 mode with a two-second press of the M button, and listen with no Bluetooth connection at all — which is exactly why it works underwater.
The Xmenha Open Ear Out, by a wide margin. It's listed with a 400mAh battery and up to 30 hours of playtime, while the MUXUN is listed at 8 hours with a 10-minute quick charge for up to 3 hours. If you hate charging, the Xmenha is the easier daily companion.
For plain running, cycling and gym use, I'd lean toward the Xmenha Open Ear Out for its lighter build and longer battery. Choose the MUXUN instead if you also swim, ride in heavy rain, or want music stored on the device. Either way, check the current price on Amazon before deciding, since both sit in different budget tiers.
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