Tanga has the Refurbished Beats by Dr. Dre Powerbeats In-Ear Headphones in red or black for $48.99 ($149.99 if new) with Free shipping for a limited time.

Engineered with athletes in mind Powerbeats Earbuds 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. Its ear gel 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 particularly important safety feature for runners. The headphones are also sweat resistant and UV protected, making them well suited for indoor or outdoor workouts.

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 to an iPod touch or another compatible MP3 player. To get the full functionality from Powerbeats’ control features, your device must be compatible with Monster’s ControlTalk Universal standard.