Cristiano Ronaldo and Monster come together to bring you ROC headphones and speakers, the pinnacle of both style and sound. You can now enjoy music at its very best with Pure Monster Sound ®'s unparalleled power, dynamics, and accuracy. Power through your most intense workouts and runs knowing you have the ultimate in-ear wireless headphones available. The award-winning ROC Sport SuperSlim in-ear headphones are sweat-proof and designed for extreme action, featuring long-wearing comfort and unbeatable Pure Monster Sound® to help you break personal barriers, achieve your goals, and LIVE LIFE LOUD. These ROC Sport Super Slim wireless in-ear headphones were also named The Best Workout Headphones by AskMen.com.