If you want a dedicated underwater audio solution with built-in storage for lap swimming, choose MARLALL Swimming Headphones-Bone Conduction; if you need a versatile wireless pair for dry-land sports and long daily listening sessions, choose Yorlu Bone Conduction Headphones. This isn't about which one sounds "better" in a vacuum, but rather which one actually solves your specific problem without leaving you stranded at the pool deck or the trailhead.
• MARLALL: The undisputed king of aquatic audio with IP68 waterproofing and 32GB internal MP3 storage, though it forces you to switch modes when entering water since Bluetooth fails underwater. Best for serious swimmers who need reliable music below the surface.
• Yorlu: A lightweight, open-ear companion designed for dry-land intensity with a 10-hour battery life and flexible titanium frame, but it lacks true submersion protection and internal storage. Best for runners, hikers, and cyclists who prioritize all-day comfort and wireless freedom.
• The Verdict: If you are looking for a true wireless earbuds gift for kids who swim competitively, MARLALL is the only logical choice; for general athletic use or sleep headphones for kids who just need quiet, Yorlu offers superior versatility on land.
The MARLALL S800 is engineered with a singular, focused purpose: to keep you entertained while submerged. Unlike standard bone conduction headphones that rely solely on a Bluetooth signal from a phone held on the poolside, this device features 32GB of built-in media storage. This specification changes everything for anyone who swims laps. You can load up to 8,000 songs directly onto the unit, bypassing the need for a phone entirely. When you dive under, the MARLALL switches seamlessly to its MP3 mode, ensuring your playlist continues uninterrupted without a single drop of lag or connection loss.
Its construction speaks directly to the harsh environment of the pool. With an IP68 waterproof rating, it is built to withstand immersion, saltwater, chlorine, sweat, and dust. The design utilizes a nano-coated sealed architecture combined with premium liquid silicone material. This creates a skin-friendly seal that conforms to the ear without creating pressure points, a common complaint with traditional in-ear buds that trap moisture and cause irritation during long training sessions. At just 22.68 grams, the weight is negligible even when wearing a swim cap and goggles. The magnetic charging cable also doubles as a bridge to your computer, making it incredibly easy to drag and drop new playlists before your next practice.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-28 · 6 min read · Independent comparison
Who should buy this? This is the definitive choice for competitive swimmers, triathletes, and water enthusiasts who refuse to leave their music behind. It is also an excellent option for parents seeking durable gear for children who enjoy aquatic activities. However, if your primary activity is running on pavement or hiking in the woods, you might find the lack of a speaker for ambient calls (without the mic) and the requirement to manage files via USB slightly less convenient than a purely wireless alternative. It is a specialized tool, not a general-purpose gadget.
The Yorlu X18 takes a different approach, prioritizing flexibility and endurance over submersion capabilities. Designed with a memory titanium frame, these headphones offer a level of structural adaptability that allows them to bend and flex without breaking. This ensures they stay securely in place during vigorous movements like sprinting or jumping rope. Weighing in at 28 grams, they are slightly heavier than the MARLALL but still remarkably light, featuring soft silicone cushions that provide a gentle touch for extended wear. The open-ear design is central to its philosophy, allowing you to hear your surroundings clearly while enjoying high-volume audio, which is essential for safety during outdoor activities like cycling or night running.
Battery life is where the Yorlu truly distinguishes itself from many competitors in this space. It boasts a continuous playtime of 10 hours on a single charge, paired with a staggering 240 hours of standby time. For a user who listens to podcasts or audiobooks throughout the workday and then goes for an evening run, this capacity eliminates the anxiety of a dying battery. The inclusion of Bluetooth 5.4 technology ensures a stable, interference-resistant connection up to 10 meters, delivering clear sound through the bone conduction driver without blocking the ear canal.
Who should buy this? This is the ideal pick for the multi-sport athlete, the daily commuter, or anyone who needs a "set it and forget it" headphone for long periods. It fits perfectly into the lifestyle of someone who wants sleep headphones for kids who might toss and turn in bed, as the open design prevents the discomfort of earplugs. It is also perfect for those who want a gaming headset for kids that allows them to hear roommates or parents while playing, maintaining situational awareness. If you plan to take these into the shower or the pool, you will be disappointed, but for any dry-land application, they are a robust and comfortable contender.
• Best for underwater swimming → MARLALL Swimming Headphones-Bone Conduction (IP68 rating and 32GB internal storage make it the only viable option).
• Best for long-duration dry land use → Yorlu Bone Conduction Headphones (10-hour battery life outlasts most alternatives).
• Best for safety awareness outdoors → Yorlu Bone Conduction Headphones (Open-ear design keeps ears fully exposed to traffic and nature).
• Best for file management → MARLALL Swimming Headphones-Bone Conduction (Direct computer access via magnetic cable simplifies playlist updates).
• Best for flexible fit → Yorlu Bone Conduction Headphones (Memory titanium frame adapts to various head shapes better than rigid silicone).
• Best for water resistance (rain/sweat) → Both are capable, but MARLALL wins for full immersion while Yorlu holds up against heavy rain.
• Best for call clarity after activity → MARLALL Swimming Headphones-Bone Conduction (Includes specific instructions to dry the mic post-swim for clear calls).
• Best value for versatility → Yorlu Bone Conduction Headphones (Serves as a gym, run, and commute headset in one package).
After analyzing the specifications and intended use cases, I would personally buy the MARLALL Swimming Headphones-Bone Conduction if my goal was to support a child's swimming hobby or if I were training for a triathlon. The ability to store thousands of songs internally and the IP68 waterproofing make it a non-negotiable piece of equipment for anyone spending significant time in the water. The Bluetooth limitation underwater is a feature, not a bug, because it forces the correct workflow for swimmers. However, for general daily use, the Yorlu offers a more relaxed experience with its longer battery life and flexible frame. Ultimately, for kids specifically, if they are active in the pool, the MARLALL is the safer, more functional investment.
Yes, both models are suitable for sleep due to their open-ear designs which avoid the pain of in-ear buds, though the Yorlu's lighter frame and 10-hour battery make it particularly well-suited for overnight use.
Both products are listed for adult age ranges, but their durable designs and open-ear safety features make them strong candidates for older children involved in sports or swimming, provided adult supervision is maintained regarding water exposure for the Yorlu model.
No, the 32GB internal storage allows you to disconnect from your phone entirely and listen to pre-loaded music directly from the headphones, which is essential since Bluetooth does not work underwater.
The MARLALL offers a higher IP68 rating, protecting against total immersion, while the Yorlu provides an IP56 rating sufficient for heavy sweat and rain but explicitly warns against underwater use.
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