If you want premium silicone earbud tips that ensure a secure, hypoallergenic fit for swimming and active lifestyles across multiple earbud models, choose AZLA SednaEarfit Crystal; if you need a dedicated protective skin specifically designed to shield the charging case of your JBL Tune 245NC from drops while keeping LED visibility intact, choose UYRUREL Compatible. These two products solve fundamentally different problems for the modern audio user, and confusing one for the other will lead to frustration rather than satisfaction.
• AZLA SednaEarfit Crystal: Its biggest strength is the German LSR silicone that offers a naturally grippy surface for stability during intense movement; its trade-off is that it only replaces the ear tips, leaving your charging case completely unprotected. This pick is for swimmers and athletes who prioritize comfort and seal quality over external case protection.
• UYRUREL Compatible: Its biggest strength is the shockproof silicone shell that guards the entire charging unit against dirt, oil, and accidental drops while maintaining wireless charging access; its trade-off is that it is locked exclusively to the JBL Tune 245NC model and cannot be used with any other device. This pick is for JBL owners who travel frequently and fear damaging their charging cases in bags or pockets.
The AZLA SednaEarfit Crystal is engineered for people who treat their earbuds as essential gear for physical activity. The core value here lies in the material science. Made from premium hypoallergenic German Liquid Silicone Rubber (LSR), these tips are designed to withstand the rigors of sweating and water exposure without degrading or causing irritation. Unlike standard rubber tips that can become slippery when wet, this material features a naturally sticky surface that helps keep your earbuds securely in place. This is not just marketing fluff; it is a critical feature for anyone using a usb c charging gaming headset for swimming or running in the rain, where a loose fit means lost audio and lost devices.
Comfort is equally central to this design. The product line was developed by analyzing the shape of more than 1,500 ears over a period of two years, resulting in a variety of sizes ranging from Medium Large down to Ultra Short. This attention to detail ensures that whether you have a small canal or a wide ear shape, there is a configuration that creates an effective acoustic seal. That seal does double duty: it improves passive sound isolation so you can hear your music clearly underwater or in noisy gyms, yet it preserves the original sound signature of your earbuds. You do not sacrifice audio fidelity for security.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-26 · 6 min read · Independent comparison
However, this product is not for everyone. If you own Samsung Galaxy Buds Pro, Galaxy Buds Live, or AirPods Pro, these tips will not work because the core length and nozzle geometry differ significantly. The Crystal Clear Sound version has a specific 4mm core length intended for models like the Galaxy Buds 2, Buds+, and Buds. Furthermore, if your primary concern is protecting the plastic shell of your charging case from scratches or cracks, this product offers zero help. It is purely an internal upgrade for your listening experience, making it ideal for those who already have a case they trust but feel their earbuds slip during vigorous exercise.
In contrast, the UYRUREL Compatible solution addresses the fragility of the charging case itself. This product is a specialized skin designed exclusively for the JBL Tune 245NC TWS Active Noise Cancelling Earbuds. If you are looking for a general-purpose accessory, this is not it. But if you are a JBL owner who carries their case in a backpack, gym bag, or pocket alongside keys and coins, this silicone shell provides a necessary layer of defense. The soft elastomer material feels like skin to the touch, offering a premium feel while delivering shockproof protection against everyday hazards like dirt, oil, and sudden drops.
One of the most practical features of this design is the integration of functionality with protection. Many hard cases require you to remove the cover to check the battery level, but the UYRUREL case features a visible front LED light design. This allows you to identify exactly how much charge remains without taking the case off your earbuds. Additionally, the precise cutouts ensure that the charging port remains accessible. You can charge your device wirelessly or via a cable without ever removing the protective skin, saving you time and reducing wear on the charging contacts.
This product shines for travelers and commuters who need durability above all else. It comes with a lanyard, which adds another layer of security against losing the case entirely—a common annoyance when rushing to catch a train or swim in a public pool. However, the exclusivity is a significant limitation. It fits only the JBL Tune 245NC. If you switch earbuds or buy a new model, this accessory becomes useless. It is also worth noting that while it protects the case, it does nothing to improve the fit of the earbuds themselves or the quality of the seal inside your ear. It is purely an external armor, best suited for those who view their charging case as a vulnerable component that needs shielding from the elements.
• Best for swimming and active sports → AZLA SednaEarfit Crystal, due to the grippy LSR silicone that prevents slippage in water.
• Best for charging case protection → UYRUREL Compatible, as it shields the entire unit from scratches, drops, and dirt.
• Best for universal compatibility → AZLA SednaEarfit Crystal, since it works with Beats Powerbeats Pro and various Galaxy Buds models.
• Best for specific JBL users → UYRUREL Compatible, as it is custom-molded solely for the JBL Tune 245NC.
• Best for long-term comfort → AZLA SednaEarfit Crystal, thanks to the hypoallergenic material tested on thousands of ear shapes.
• Best for battery monitoring convenience → UYRUREL Compatible, because the LED remains visible through the case.
• Best for acoustic performance → AZLA SednaEarfit Crystal, which enhances passive isolation without altering sound quality.
• Best for portability and loss prevention → UYRUREL Compatible, featuring a built-in lanyard to keep the case attached to your person.
I would choose the AZLA SednaEarfit Crystal for my personal setup, especially if I were planning to use my earbuds for swimming. The ability to maintain a secure, comfortable seal in wet conditions is a non-negotiable feature for me, and the hypoallergenic properties ensure I can listen for hours without irritation. While the UYRUREL case is excellent for protecting a JBL charger, it does not enhance the actual listening experience or the fit of the earbuds themselves. Ultimately, the AZLA tips address the most critical point of contact between the user and the audio device, making them the superior investment for serious listeners and athletes.
Yes, the AZLA SednaEarfit Crystal uses premium German LSR silicone with a naturally grippy surface that is designed to stay secure during workouts and swimming, ensuring the earbuds do not fall out even in water.
Absolutely, the UYRUREL compatible case is designed with precise cutouts that allow for both wireless charging and standard cable charging without needing to remove the protective silicone skin.
Yes, made from high-quality elastomer silicone, the case provides a shockproof effect that protects the charging case from dirt, oil, scratches, and drops during everyday use.
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