Experience unparalleled audio versatility with the TRI 2 Multi-Sport Headphones, designed for all your athletic endeavors, whether on land or in water. Whether you're swimming, running, biking or padding the TRI Multi-Sport has you covered. These headphones feature advanced bone conduction technology, delivering unparalleled clear and crisp sound while allowing you to stay aware of your surroundings. For above-water activities, the TRI Multi-Sport connects seamlessly to your smartphone or smartwatch via Bluetooth for live direct Streaming. Planning a swim? Easily download your favorite audio in multiple formats, including M4A, MP3, WMA, FLAC, and APE. Since Bluetooth isn't functional underwater, we recommend directly downloading your favorite audio files for your aquatic adventures. Built to seamlessly transition between different sports, these headphones boast beyond IPX8 waterproof technology, making them perfect for swimming and sweat resistance. With up to 8.5 hours of mixed-use playtime and 8 GB of storage, you can enjoy a diverse listening experience on a single charge. To ensure your satisfaction, the TRI Multi-Sport comes with a Go Beyond warranty, offering an included one-year guarantee against any defects in materials or workmanship. By successfully registering your product, you can extend this coverage for an additional year, providing you with peace of mind and confidence in your purchase for up to two years.