The TRI 2 PRO is a game-changer and offers a completely new way of listening to music. We call it PLAYLIST+, our patent-pending solution for offline streaming music without a phone. Take your streaming music underwater & anywhere. WTRL MEMBER DISCOUNT CODE AVAILABLE - DUE IN STOCK 24th DECEMBER 2025! H2O Audio App: With the new H2O Audio app, you can manage all your music, update your software, create folders, add songs to your Playlist+ and more. The app is free and available for both Apple and Android. Open Ear Experience: Our latest bone conduction speakers are slimmer (by 5mm vs. TRI headphones) and use enhanced speakers that provide an amazing sound in and out of water - with full situational awareness. Multi-Sport Design: Designed for swimming, biking, running, paddling, surfing, and snowboarding. Your Sport - Your Music! 100% Waterproof: H2O Audio waterproof technology allows headphones to withstand submersion to 12'/3.6m underwater for an unlimited amount of time. Waterproof Rating: IPX8. MP3 Player: Built-in MP3 player with 8 GB of memory will hold several thousand songs and accepts most music formats - including the iTunes .M4A. Bluetooth: Connect your iPhone, Android or any music-enabled smart watch - and enjoy running & biking with streaming music. Note Bluetooth does not work underwater. To enjoy music underwater, use MP3 or PLAYLIST+ mode. Battery Life: 6 to 9 hours of play time depending on usage. Battery life will vary based on mode and volume. Charging time ~2h. Secure Fit: The neck band provides a secure and comfortable fit while swimming, paddling, running, and working out. Earplugs included for swimming use - to reduce any water noise in your ears.