Bone conduction headphones with storage are perfect for swimming, running, and outdoor workouts. These headphones include built-in memory, allowing users to store music directly on the device without needing a phone. Models like SHOKZ OpenSwim Pro Bone-Conduction Open-Ear Sport Headphones and SHEYIN X5 Bone Conduction Headphones IPX8 with 32GB Storage offer waterproof protection, open-ear comfort, and MP3 playback. Built-in storage is especially useful underwater, where Bluetooth signals often fail.