Train safely in any environment with the Poly BackBeat FIT 2100 Wireless Sport Headphones. These Bluetooth earbuds come with Always Aware eartips, enabling you to hear whatever’s going on around you. In addition, the BackBeat FIT 2100 headphones provide a reflective finish so others can clearly see you at night. Featuring secure-fit eartips, they fit comfortably and securely behind your ear. Similarly, the lightweight neckband doesn’t move around during your workouts. Both waterproof and sweatproof, the BackBeat FIT 2100 headphones can easily endure any rigorous outdoor session. Moreover, the app makes it easy to customize your workout experience. With one or two taps, you can choose a playlist, set a timer and more straight from your earbuds. Available in four colors, the BackBeat FIT 2100 headphones will help you make it through any workout.