Defunc Earbud GO SPORT model is the perfect earbud for the active person. Sweat and water resistant and a perfect fit makes it the perfect earbud for the active user.The Defunc Go Sport Earphones offer a comfortable and secure fit which ensures that you can workouts without worrying about them falling out of your ears. Music helps you stay motivated to reach your desired fitness goals and beat personal records. These earphones come with a built-in mic which allows you to manage phone calls easily without interrupting your workouts. The high-end microphone allows clear, distortion-free voice calls. You no longer have to dig your pockets for your Smartphone as you can easily answer calls with these earphones. These earphones from Defunc are designed to allow high-performance sporting activities.