Jaybird RUN offer truly wireless listening for a radically freeing running experience. Totally wire-free ear-buds fit comfortably and securely in your ear while motivating music powers your exercise. It's just you, your music, and your energy, and nothing gets in your way. Sweat and weather resistant coating keeps them going in all conditions, with a battery life of up to 12 hours with the included charging case. Say goodbye to the wires and set your sport truly free with Jaybird RUN. Truly Wireless for Incredible Freedom With two independent ear-buds fitting comfortably and securely in your ears, not a single wire gets in the way of your exercise, your music, your calls. Read more… A Bluetooth connection with iOS and Android devices allows you listen to your top tracks without any wires. And an in-built omni-directional mic with simple one-button control on the ear-bud means you can take calls easily without stopping. Feel the inspiring freedom of truly wire-free running. Secure Comfort-Fit Interchangeable ear-fins and ear-tips fit every size of ear. With secure comfort-fit design they stay locked in place no matter how hard you push yourself. You'll forget you're wearing them and got lost in music and muscle-power. Stunning Sound Despite the small size of the ear-buds, they produce a loud and open soundscape of rich and balanced audio. And you can customise the EQ to your taste by downloading the Jaybird app onto your portable device (iOS and Android). All Weathers, All Work-Outs A double hydrophobic nano coating repels sweat, rain and dirt, to keep your Jaybird RUNs delivering awesome audio in all weathers and all conditions. Power to Keep Going They'll keep going for up to 4 hours, with a further 8 available from the small, portable charging case that's included. A quick 5 minute charge gives an hour of sound. So you can be sure they'll keep going for as long as you can.