If you want a lightweight, open-ear experience that keeps your ears cool and safe for active land use like djing or running, choose Pmjebe Bone Conduction Swimming; if you need a secure, in-ear seal specifically engineered to deliver stable sound underwater without slipping during intense laps, choose Clooissr IPX8.
• Pmjebe Bone Conduction Swimming: Best strength is its open-ear design offering all-day comfort and situational awareness with 10 hours of battery life; biggest trade-off is the lack of deep bass isolation and in-ear security required for high-intensity swimming. Ideal for those prioritizing safety and ear health during land workouts or casual listening.
• Clooissr IPX8: Best strength is its specialized in-ear hook design with rotatable tips for a watertight seal up to 6 meters deep; biggest trade-off is the potential for ear fatigue over long periods compared to open designs. Ideal for serious swimmers who need a secure fit and focused audio underwater.
The Pmjebe S8-US is built around a philosophy of freedom and awareness. Its defining feature is the bone conduction technology, which sits outside the ear canal entirely. This design choice fundamentally changes how you interact with your environment. Because your ears remain open, you are never cut off from the world around you. You can hear traffic, conversations, and ambient noise while enjoying your music. This makes it an exceptionally safe choice for outdoor activities where situational awareness is non-negotiable. Whether you are cycling on a busy street or managing equipment as a dj in a semi-open space, the ability to hear your surroundings while listening to tracks is a critical safety feature that traditional in-ear headphones simply cannot match.
Comfort is another pillar of this product's identity. The device weighs only 1 ounce and features a soft silicone frame designed to distribute weight evenly. Traditional in-ear buds often cause pressure points or pain after an hour of wear, but the Pmjebe eliminates that burden entirely. The "open ear" concept allows your ears to breathe, meaning sweat does not get trapped inside the canal. This is particularly relevant for djing or long studio sessions where you might be wearing headphones for hours without a break. The flexible ergonomic design ensures the unit stays securely in place during movement, yet it never feels like it is squeezing your head. For anyone who has ever suffered from "ear fatigue," this ultra-light construction offers a refreshing alternative that lets you focus on the music rather than the hardware pressing against your skin.
Audio performance here relies on 16mm speaker drivers and a precise sound chamber design. While the sound is clear with rich bass and crisp highs, it is tuned for a natural listening experience rather than heavy isolation. The device supports both Bluetooth 5.4 for seamless wireless streaming and a built-in 8GB MP3 player capable of storing up to 3,000 songs. This dual-mode capability means you can leave your phone behind and still enjoy a full library directly from the headset. The battery life is rated for 10 hours, providing ample time for extended gym sessions, long runs, or a full day of casual listening. However, users should note that because the ear canal is open, the bass response, while improved by the neodymium magnet dynamic unit, will not be as physically impactful as sealed in-ear models. If you require absolute silence to isolate yourself from a noisy room, this open architecture might feel too exposed.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-28 · 9 min read · Independent comparison
Who should skip this: Avoid this model if your primary goal is submerging in water for lap swimming. While it carries an IP68 rating and claims to handle submersion up to 5 meters for 24 hours, the open-ear design does not create the acoustic seal necessary for underwater audio fidelity. Without a physical barrier blocking water entry into the ear canal, sound transmission underwater will be distorted and inefficient compared to dedicated swim buds.
The Clooissr S36 is a purpose-built tool for the water warrior. Unlike the Pmjebe, this device embraces an in-ear form factor with a specific mission: to provide a secure, waterproof seal that survives the rigors of swimming. The engineering here focuses entirely on stability and acoustics under pressure. The earbuds feature 30° rotatable ear hooks and come with three sizes of specialized swim earplugs (S/M/L). This customization is not a minor detail; it is the difference between a headphone staying put during a flip turn or falling out mid-lap. By selecting the correct ear tip size, you create a tight seal that not only improves comfort but significantly enhances sound quality by blocking out external water noise.
Sound delivery in the Clooissr is optimized specifically for underwater acoustics. The 12mm dynamic drivers are tuned to eliminate distortion caused by water pressure changes, delivering balanced audio that cuts through the chaos of a pool. This is crucial for rhythmic swimming where maintaining a beat is essential for pacing. The device includes passive noise cancellation, which works in tandem with the physical seal to create a private listening bubble even in a loud public pool. For a dj looking to practice mixing routines in a quiet corner of a pool deck or simply wanting to drown out the splashing of others, this isolation is a massive advantage. The IPX8 rating confirms it can handle submersion up to 6 meters, making it robust enough for deep dives or intense training sessions.
Battery life is another strong point for the serious swimmer. The Clooissr offers up to 12 hours of total usage, with 10 hours available via Bluetooth for land use and 8 hours of continuous playback when using the built-in MP3 player mode. The internal storage holds up to 1,500 songs, supporting formats like MP3, FLAC, and WMA. This ensures you have plenty of content for weeks of training without needing to sync your phone constantly. The controls are straightforward, allowing you to switch modes and navigate playlists with simple button presses. However, the in-ear design comes with a caveat: some users may find the sensation of having something inside their ear canal uncomfortable over very long durations. The "one-size-fits-all" approach is mitigated by the included ear tips, but it remains a different sensory experience than open-ear options.
Who should skip this: If you prioritize hearing ambient sounds for safety while jogging or cycling on roads, this in-ear model is less ideal. The passive noise cancellation and physical seal mean you will be largely isolated from your environment. While great for the pool, this isolation could be dangerous or annoying for outdoor activities where you need to hear approaching vehicles or instructions from a coach.
• Best for Situational Awareness → Pmjebe Bone Conduction Swimming. The open-ear design lets you hear traffic and people, making it safer for outdoor land activities.
• Best for Underwater Stability → Clooissr IPX8. The rotatable hooks and customizable ear tips create a seal that stays put during flips and turns.
• Best for All-Day Comfort → Pmjebe Bone Conduction Swimming. At 1 ounce, it eliminates ear pressure and allows ears to breathe, perfect for long wear.
• Best for Audio Isolation → Clooissr IPX8. The in-ear seal and passive noise cancellation block out pool noise and distractions effectively.
• Best Battery Life → Clooissr IPX8. Offers up to 12 hours of total usage compared to the Pmjebe's 10 hours.
• Best Storage Capacity → Pmjebe Bone Conduction Swimming. Holds up to 3,000 songs, double the capacity of the Clooissr's 1,500-song limit.
• Best for DJing with Open Ears → Pmjebe Bone Conduction Swimming. Allows you to monitor the room and crowd while wearing bluetooth headphones for dj setups.
• Best for Deep Water Training → Clooissr IPX8. Engineered specifically for water acoustics and submersion up to 6 meters.
Before making your final decision, consider the environment where you will spend most of your time. If your workflow involves being outdoors, in a gym, or managing audio gear in a space where you need to hear your surroundings, the Pmjebe's open-ear architecture is the logical choice. It transforms the listening experience from one of isolation to one of integration. Conversely, if your primary concern is the integrity of the audio signal while submerged, or if you need to block out the chaotic noise of a crowded pool to focus on your rhythm, the Clooissr's sealed design is superior. The trade-off is always between awareness and isolation. Furthermore, think about the duration of your wear. For marathon listening sessions, the weightless feel of the Pmjebe wins. For high-intensity bursts where security is paramount, the Clooissr's grip is unmatched. Both devices offer Bluetooth 5.3/5.4 connectivity and MP3 players, so neither leaves you stranded without a phone, but their physical interaction with your body differs significantly.
In my opinion, I would buy the Pmjebe Bone Conduction Swimming if my primary use case was general fitness, running, or working as a dj where situational awareness is key. The ability to keep my ears open and comfortable for hours without the pressure of in-ear buds is a game-changer for daily use. However, if I were strictly preparing for competitive swimming or needed to train underwater without any fear of the device slipping, I would immediately switch to the Clooissr IPX8. The specialized fit and acoustic tuning for water make it the undisputed champion for aquatic sports, whereas the Pmjebe excels as a versatile, safety-first companion for everything else. For a dj looking for transparency mode gaming headphones or open ear earbuds for djing that don't block out the room, the Pmjebe is the clear winner.
Both claim IPX8 ratings, but the Clooissr is explicitly engineered for underwater acoustics with a sealed in-ear fit, whereas the Pmjebe is better suited for surface-level water exposure or rain due to its open design.
The Clooissr offers slightly longer endurance with up to 12 hours of total battery life compared to the Pmjebe's 10-hour rating, making it more suitable for multi-day training camps.
Yes, both units feature built-in MP3 players with significant storage (3,000 songs for Pmjebe, 1,500 for Clooissr) allowing you to listen to music independently of a mobile device.
The Pmjebe uses a lightweight, flexible frame that stays put during running, while the Clooissr uses rotatable hooks and multiple ear tip sizes to ensure a tight seal, especially beneficial for high-impact movements like jumping rope or swimming.
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