Embrace the outdoors and train more safely with BackBeat FIT 2100 earbuds, which feature a reflective finish to keep you visible at night and Always Aware eartips. The unique eartip design doesn't fully block the ear canal, letting in ambient sound and allowing you to simultaneously listen to music and hear your surroundings. Experience natural mid-tones, crisp highs, and a comfortable fit that never feels too snug, all while remaining aware of the world around you, for safer training in any environment. BackBeat FIT 2100 features secure-fit eartips, a behind-the-ear design and a flexible, lightweight neckband that stays in place during workouts, so you won't have to fidget with the fit. Sweatproof and waterproof, BackBeat FIT 2100 is built to withstand your most rigorous outdoor workout sessions. And, with up to seven hours of wireless listening, you can power a week of workouts - no matter what weather. Now you don't have to pause your workout to change things up. Available through the BackBeat app, the My Tap feature offers command customization for a personalized workout experience. 13.5mm driver. Water-resistant. 10m range. Compatible with universal smartphones. Batteries required 1 x rechargeable battery (included) . Rechargeable battery. 7 hour battery life. 15 minute charging time. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard.