If you want a dedicated underwater MP3 player with a seamless magnetic charging system and ultra-lightweight comfort for long laps, choose MARLALL Soft Liquid Silicone; if you need versatile dual-mode connectivity, the latest Bluetooth 5.4 chip for land use, and extended warranty coverage, choose Roujune Swimming Headphones Bone.
• MARLALL Soft Liquid Silicone: Its biggest strength is the skin-friendly liquid silicone construction that feels weightless (22.68 g) and the robust 7-hour battery life optimized for swimming; its trade-off is the lack of Bluetooth underwater and no dual-device support.
• Roujune Swimming Headphones Bone: It shines with the versatility of switching between MP3 mode and stable Bluetooth 5.4 for running or gym sessions, plus a generous 2-year warranty; however, it is slightly heavier at 27g and uses a standard button interface rather than magnetic convenience.
• Who picks MARLALL: The serious swimmer who prioritizes pure aquatic performance, minimal weight, and fast magnetic charging over wireless phone connectivity in the water.
• Who picks Roujune: The active user who wants one pair of headphones to handle both deep-water training and daily land-based activities like hiking or Zoom calls with superior connectivity.
The MARLALL Soft Liquid Silicone model is engineered specifically for those who view swimming as their primary activity and demand gear that disappears while they wear it. At just 22.68 grams, this device leverages an ergonomic ear-hook design that distributes pressure evenly across the head. This isn't just about being light; it is about stability during intense strokes. The soft liquid silicone material wraps around the ear without creating the pressure points that rigid plastic buds often cause, making it ideal for extended wear where comfort is non-negotiable.
For the dedicated swimmer, the IPX8 waterproof rating is not merely a feature but a necessity. This unit is built to resist full water immersion, allowing you to tackle open water swims, pool laps, or snorkeling trips without fear. The bone conduction technology keeps your ears open, ensuring you remain aware of your surroundings even when submerged, which adds a layer of safety that traditional in-ear earbuds simply cannot match. However, there is a critical operational reality: this device operates in MP3 mode only when underwater because Bluetooth signals do not transmit through water. You must load your playlists directly onto the internal 32GB storage via the included magnetic charging cable before you hit the pool.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-28 · 7 min read · Independent comparison
This product fits the buyer who wants a "set it and forget it" experience. Once you have transferred your music to the headphone's memory, you can dive in without worrying about pairing issues or signal loss. The 1.5-hour charging time yields up to 7 hours of continuous playback, which covers multiple days of training sessions without needing a recharge. If your routine involves frequent diving or long-distance swimming, the secure fit ensures these headphones will not slip or shift, even in turbulent water. It is a specialized tool for a specialized environment, sacrificing general-purpose connectivity for peak aquatic reliability.
The Roujune Swimming Headphones Bone targets the multifaceted athlete who refuses to compromise on versatility. While it shares the core capability of being an IP68 waterproof swim device, its standout feature is the inclusion of the latest Bluetooth 5.4 technology. This allows for a stable connection up to 10 meters when you are out of the water, making it a viable option for running, cycling, or even gaming headset scenarios for Zoom calls where audio clarity matters. The ability to switch between MP3 mode and Bluetooth mode with a simple double-press of the power button means you carry one device for every aspect of your fitness journey.
Comfort is addressed through a flexible titanium memory neckband paired with soft liquid silicone, though the total weight sits at 27 grams. This slight increase in mass compared to some competitors is offset by the durability of the enclosure material, which is made from Acrylonitrile Butadiene Styrene (ABS). This choice of material suggests a focus on ruggedness and longevity. The open-ear design remains consistent with the category, keeping your ears free to hear traffic or nature sounds, which is essential for safety during outdoor workouts. The 32GB internal storage still holds up to 8,000 songs, so you are never tethered to your phone for music playback during a swim.
What truly sets this model apart for many buyers is the service ecosystem. Roujune provides a 2-year after-sales service warranty, which is double the standard 1-year coverage found on the competitor. This indicates a manufacturer confidence in the build quality and a commitment to long-term support. The device also supports dual-device connection, allowing you to seamlessly switch between a laptop and a smartphone, a feature that is particularly valuable for professionals who listen to music during work breaks and then transition to a workout. If you need a single pair of headphones that transitions effortlessly from a deep-water session to a high-intensity run or a video conference, this is the logical choice.
• Best for underwater-only focus: MARLALL Soft Liquid Silicone wins here due to its streamlined, magnetic-charging workflow designed purely for aquatic efficiency.
• Best for multi-environment use: Roujune Swimming Headphones Bone takes the lead with Bluetooth 5.4 support, making it perfect for best headset for hiking or gym sessions where wireless streaming is required.
• Best for battery endurance: MARLALL offers 7 hours of playback on a 1.5-hour charge, whereas Roujune provides 6 hours, giving a slight edge to the former for long training blocks.
• Best for connectivity features: Roujune supports dual-device connection and Bluetooth 5.4, enabling easy switching between devices, unlike the MARLALL which lacks underwater Bluetooth.
• Best for lightweight comfort: MARLALL edges out at 22.68g versus Roujune's 27g, making it feel more like an extension of the body for those sensitive to weight.
• Best for peace of mind: Roujune includes a 2-year warranty compared to MARLALL's 1-year, offering better long-term protection for your investment.
• Best for kids bluetooth usage: Both support open-ear designs suitable for younger users, but the Roujune's versatile connectivity makes it easier for parents to manage music and calls for children.
• Best for charging speed: MARLALL's magnetic charging system allows for direct computer access and effortless plugging, avoiding the hassle of finding specific ports.
After weighing the specifications and real-world application scenarios, I would buy the Roujune Swimming Headphones Bone for my personal collection. While the MARLALL is an impressive piece of engineering for pure swimming, the limitations of lacking Bluetooth underwater and the absence of dual-device support make it a single-purpose tool. In my opinion, the value of having a device that functions flawlessly as a gaming headset for zoom calls, a memory foam ear cushions kids headphones alternative for running, and a capable swim tracker in one package is too significant to ignore. The Bluetooth 5.4 chip and the 2-year warranty provide a level of flexibility and security that justifies the slightly higher weight. For anyone looking for a solution that covers for kids bluetooth needs alongside adult athletic training, the Roujune offers the most complete package.
Yes, both models feature open-ear designs that keep the ear canal clear, which is generally considered safer for hearing health. The Roujune model is particularly noted for its suitability in diverse settings, including use as memory foam ear cushions kids headphones for various activities.
No, Bluetooth signals cannot transmit underwater. Both devices require you to switch to MP3 mode and load music files directly onto the internal 32GB storage before entering the water.
You must transfer files from a computer to the headphones using the provided magnetic charging cables. Neither device allows you to copy music directly from a phone app to the headphone memory card; the process requires a desktop connection.
Roujune offers a 2-year manufacturer warranty, providing two years of after-sales service, whereas MARLALL provides a standard 1-year warranty period.
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