If you want deep bass, long battery life, and secure in-ear stability for high-intensity movement like hiking, choose JBL Endurance Race 2; if you need to hear your surroundings while swimming or running without ear blockage, choose Pmjebe Bone Conduction Swimming.
• JBL Endurance Race 2: Delivers powerful bass and 48 hours of total playtime with a secure Twistlock fit, but the in-ear design blocks out ambient noise which can be isolating. Best for hikers who prioritize audio immersion and marathon battery life.
• Pmjebe Bone Conduction Swimming: Offers an open-ear experience that keeps you aware of traffic and nature while being fully submersible up to 5 meters, but it sacrifices deep bass and has a shorter 10-hour battery life. Best for swimmers and runners who value situational awareness over pure sound isolation.
The JBL Endurance Race 2 is engineered for those who treat their audio gear as a serious piece of athletic equipment rather than just a music accessory. The defining feature here is the combination of its IP68 waterproof rating and the ergonomic wing enhancer with Twistlock technology. This isn't just about keeping water out; it is about creating a mechanical lock that prevents the buds from falling out during intense lateral movements. If you are the type of person whose ears sweat through standard silicone tips within an hour, this design offers a solution. The wings physically anchor the earbuds into the concha, ensuring they stay put whether you are sprinting, jumping rope, or navigating a rocky trail.
For the avid hiker, the battery performance is a game-changer. With a single charge providing 12 hours of playback and the case adding another 36 hours, you are looking at a total of 48 hours of listening time. This eliminates the anxiety of charging devices mid-trip. The inclusion of Speed Charging is equally practical for a day hike where you might forget to charge overnight; ten minutes on the USB Type-C cable yields four hours of playtime. You can plug it in while making coffee before a morning trek and have enough juice to last the entire route. The Active Noise Cancellation (ANC) further refines this for outdoor use by filtering out wind noise and distracting background chatter, allowing you to focus entirely on your playlist or audiobook.
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
However, this product is not for everyone. The in-ear design means you are sealing off your ear canal. While Smart Ambient technology allows you to hear some outside noise when needed, it cannot replicate the natural, unfiltered awareness of an open-ear device. If your primary concern is safety regarding hearing approaching vehicles or wildlife, the physical barrier of these earbuds is a trade-off you must accept. Furthermore, the charging case itself is only IPX2 rated, meaning it is splash-resistant but cannot be submerged. You must be diligent about drying the buds completely before placing them back inside, or you risk damaging the electronics. This product is ideal for someone who wants premium sound quality, massive battery capacity, and a fit that survives the most grueling workouts, provided they don't mind the slight isolation of in-ear monitors.
The Pmjebe Bone Conduction Swimming headset takes a fundamentally different approach to audio delivery, prioritizing safety and versatility over traditional sound isolation. By using bone conduction drivers instead of inserting anything into the ear canal, it leaves your ears completely open. This design philosophy makes it uniquely suited for activities where environmental awareness is non-negotiable. Whether you are cycling down a busy street, running near traffic, or hiking on a trail with limited visibility, you can enjoy your music while still hearing cars, other hikers, or animals approaching from behind. The "open ear" concept also addresses comfort issues common with in-ear models; there is no pressure buildup, no heat trapped in the canal, and no soreness after hours of wear.
A critical differentiator for this device is its capability underwater. With an IP68 and IPX8 rating, it can be submerged up to 5 meters deep for 24 hours. This is a level of protection that goes far beyond typical sweat resistance, making it one of the few options viable for lap swimming in a pool or open-water training. Unlike many sports headphones that fail at the first sign of deep immersion, the Pmjebe handles the pressure of water without issue. Additionally, the built-in 8GB MP3 player removes the dependency on a smartphone. You can leave your phone in the locker or at home and still carry a library of up to 3000 songs directly on the device. This is particularly useful for runners who want to travel light without carrying a bulky phone in their pocket.
Despite these advantages, there are clear limitations to consider. The 10-hour battery life is solid for a single session but falls short compared to the 48-hour ecosystem of the JBL. You will need to charge it more frequently if you are planning multi-day adventures. The sound profile, driven by 16mm speakers designed for bone conduction, naturally lacks the deep, thumping bass that dynamic drivers provide. The audio is clear and crisp with rich highs, but the low-end response is inherently limited by the technology. If you are a purist who demands heavy bass for high-energy motivation, you may find the sound signature flat. This device is perfect for the swimmer who needs waterproof reliability, the cyclist who needs to hear traffic, and the hiker who prefers an all-day comfortable fit without ear fatigue.
• Best for battery life → JBL Endurance Race 2: The 48-hour total capacity with the charging case dwarfs the 10-hour standalone life of the Pmjebe.
• Best for swimming → Pmjebe Bone Conduction Swimming: Its ability to withstand submersion up to 5 meters makes it superior for actual swimming, whereas the JBL is water-resistant but not designed for extended underwater use.
• Best for sound depth → JBL Endurance Race 2: The 6.8mm dynamic drivers and ANC provide a richer, bass-heavy experience that bone conduction cannot match.
• Best for situational awareness → Pmjebe Bone Conduction Swimming: The open-ear design ensures you never miss the sound of a car horn or a bird call, a safety feature the in-ear JBL cannot fully replicate.
• Best for secure fit during intense motion → JBL Endurance Race 2: The Twistlock wing enhancer provides a mechanical lock that is more stable for high-impact activities than the flexible frame of the Pmjebe.
• Best for phone-free listening → Pmjebe Bone Conduction Swimming: The integrated 8GB storage allows you to listen to music without needing a paired smartphone nearby.
• Best for cold weather comfort → Pmjebe Bone Conduction Swimming: Without an in-ear seal, it avoids the cold air rushing into the ear canal, which can be uncomfortable in winter hikes.
• Best for long-term durability in rain → JBL Endurance Race 2: While both are waterproof, the JBL's specific design focuses on sweat and rain resistance for surface-level sports, with a robust case that protects the buds when not in use.
After weighing the specifications and real-world applications, I would personally buy the JBL Endurance Race 2 for my hiking trips. While the Pmjebe is undeniably clever with its underwater capabilities and open-ear safety, the sheer utility of the 48-hour battery life and the immersive sound quality of the JBL makes it the more versatile companion for long trails. The ability to run for two full days without charging is a logistical advantage that outweighs the minor isolation of the in-ear design, especially since I can use Smart Ambient mode when I need to hear my surroundings. For a dedicated swimming set, the Pmjebe is excellent, but for the general active lifestyle that includes hiking, the JBL delivers a more complete package.
Yes, both products offer safety features, but in different ways. The Pmjebe keeps your ears open so you hear everything naturally, while the JBL uses Smart Ambient technology to let outside sounds filter through so you remain aware of your environment.
While the JBL buds are IP68 rated and can survive submersion, the charging case is only IPX2 rated and is not waterproof. You should not submerge the case, and you must dry the buds thoroughly before returning them to the case.
The JBL Endurance Race 2 offers significantly longer endurance with 12 hours per charge and an additional 36 hours from the case, totaling 48 hours. The Pmjebe provides 10 hours of continuous playback on a single charge.
No, the Pmjebe features built-in 8GB storage that holds up to 3000 songs, allowing you to play music directly from the device without connecting to a smartphone via Bluetooth.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.