Beats by Dr. Dre Powerbeats - Earbuds(Black) Bundle with Beats Cable with Microphone and Zorro Sounds Custom Cloth Flexible earclips are designed to secure the Powerbeats earphones in your ears, even during vigorous workouts. Sweat-resistant materials and ear tips of all sizes keep you comfortable. Powerbeats earphones come with two speakers inside each bud, a feature designed to provide quality and accurate response at any volume level. The ear tips are designed to allow you to maintain awareness of your surroundings without leaking music out to those around you. Powerbeats earphones are designed to pump clear bass at any volume while still letting in ambient noise-making sure athletes stay safe while running on the road. An integrated control module with a built-in mic lets you make phone calls, take voice notes, skip tracks, and adjust volume levels on the iPhone. Many other smartphones are compatible, as are certain MP3 players such as the iPod touch. To get the full functionality from Powerbeats' control features, your device must be compatible with Monster's ControlTalk Universal standard.