The best in ear headphones for sports these wireless earphones are sweat proof stay put and feature unrivaled pure monster sound174 to power you through your most intense workouts wireless pure monster sound174 isport174 wireless are the best in ear headphones for getting you pumped up and ready to shred thumping bass unadulterated clarity and a wide dynamic range bring tunes to life these sports earphones are small but produce mighty wireless sound to give you your get up and