【Sports Comfort & IPX7 Waterproof】- BX17 wireless headphones Designed with elastic and soft ear hooks, these Bluetooth sports earbuds stay securely in place and provide ultimate comfort even during extended workout sessions. The earphones come with three different sizes of ear tips, ensuring a perfect fit for various ear sizes. With an IPX7 waterproof rating, they effectively resist water splashes and sweat, making them ideal for sports, fitness, workouts, and running.