Monster iSport Achieve Bluetooth Earphones are great companion to have for a workout session. Designed to fit perfectly, it features Monster SecureFit that lets you move freely without having to fix your earphones repetitively. With high noise isolation you can easily focus on your workout without being disturbed by your surroundings. Listen to your favorite music with deep base and crisp highs. The construction is extremely durable and sweat-proof. They can also be used for handsfree calling and comes with a tangle resistant cable.