Beats by Dr. Dre Powerbeats Sweat-Resistant and UV Protected, Subwoofer and Midrange Tweeter Per Ear Earphones Created by LeBron James and Dr. Dre, the black Powerbeats - Earbuds Engineered for Athletes by Beats feature adjustable/bendable earclips that wrap around the outside of your ears, keeping the earphones from moving or falling out while you exercise. You also get three different-sized pairs of ear tips to choose from. The tips are made to give you enough noise isolation to keep your music from leaking out, but not so much that you lose awareness of what's going on around you, which is a particula Rather than the typical single driver, each ear of the Powerbeats is equipped with a subwoofer and a midrange tweeter. The purpose of this design is to efficiently reproduce audio across the frequency spectrum. 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 or other compatible smartphones. You can also use the track and volume-control features when connected t To get the full functionality from Powerbeats' control features, your device must be compatible with Monster's ControlTalk Universal standard.