IP68 Waterproof- Rhyfell Swim 5 waterproof headphones swimming specifically designed for swimming, with a triple-sealed design; They offer a hassle-free way for swimmers to enjoy music and can be immersed in up to two meters of water for two hours. Also perfect for triathletes, and fitness enthusiasts looking to cross-train in the pool. Note: Bluetooth connection is not supported underwater. Please follow the instructions to switch to MP3 mode MP3 & Bluetooth Dual Mode (Bluetooth for land use only) Enjoy underwater music with MP3 mode. 32 GB of memory will hold 8000 songs and accepts most music formats - including the iTunes.M4A.. Switch to Bluetooth mode for seamless connectivity to any device using the latest Bluetooth 5.4 technology for quick and stable connections Comfortable Open-Ear Design Crafted from full liquid silicone skin, ensuring a comfortable fit. You wont have to worry about them slipping off during exercise; indentation-free after 8 hours of office meetings