Sanag B60S Bone Conduction Headphones IPX8 Waterproof & Sweatproof Design Fully protected with IPX8 rating, these earphones are ideal for swimming, intense workouts, and outdoor activities, resisting water immersion and sweat with confidence. 64GB Built-in Memory & Microphone Store music directly on the headset with 64GB internal memory. The built-in microphone enables clear calls and voice commands for mobile use and video games.