The Jaybird Tarah has been specially designed for runners and sporty types. With these wireless and sweat-resistant sport earplugs you can enjoy freedom of movement while training. This is because you stream your favorite music from your smartphone via Bluetooth. The earplugs do not fall out of your ears, because the soft, silicone plugs grip tightly in your ears. You also attach the caps with an ear clip in the shell of your ear. If you do not want the neckband to dangle, clip it to your clothing with the clothing clip. In the Jaybird app you determine the balance between the low, medium and high tones. This way you adjust the sound to your own taste and the music sounds the way you think it should sound.