The monster isport intensity sport headphones are a sweat proof in ear option that use pure monster sound to ensure you get thumping bass unadulterated clarity and a wide dynamic range to help you feel motivated to tackle your every session the headphones are designed to work with goggles glasses and helmets so you can use them for a great number of sports and activities indoor or outdoor and the cord is tangle free which cuts out any hassle you can control your music and phone calls han