Flexible earclips are designed to secure Powerbeats earphones in your ears no matter how rigorous your workout. Sweat-resistant materials and ear tips of all sizes keep you comfortable, always. Powerbeats earphones are the only Beats by Dr. Dre earbuds that come with two speakers inside each bud. Powerbeats earphones are specially designed to pump clear bass at any volume while letting in ambient noise You can adjust your music to find your power song right from the cord. No need to fumble with your MP3 player during your workout.