ROC SPORT SUPERSLIM WIRELESS IN-EAR HEADPHONES Nobody understands better than Ronaldo the hard work it takes to be the best. Power through your most intense workouts and runs knowing you have the ultimate in-ear wireless headphones available. The award-winning ROC Sport Super Slim 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.