Jaybird, maker of the popular sweatproof X and X2 Bluetooth headphones, has announced two new models planned for release in the second quarter of this year. Designed to appeal to athletes, the X3 ($150) and Freedom ($200) have both been redesigned from earlier, similarly-named models, and now use power-efficient Bluetooth 4.0 wireless technology for full compatibility with current-generation iPhones, iPads, and iPod touches. Each will be available in five colors, and work with Jaybird’s MySound app to create user-defined equalizer settings…

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