Smart Rope is an LED-embedded jump rope that displays your fitness data—in mid-air. Smart Rope tracks your jump count and displays it in front of you as you jump, kind of like a hologram. Smart Rope syncs to a free mobile app, Smart Gym (iOS, Android, Apple Watch)—track your jumps, calories burned, workout times, get recommended training intervals, and keep motivated by unlocking rewards and competing with your friends. Made in Korea. Features: Smart Rope features 23 super-bright LEDs, attached to magnetic sensors on two sets of ball bearings in each handle. Smart Rope charges with any standard micro-USB cable, with a two-hour charge lasting 36 hours of active use (a month's worth of regular workouts). Smart Gym works with Apple HealthKit, Google Fit, and the Under Armour connected fitness platform (UA Record, MyFitnessPal, MapMyFitness, Endomondo) to support all your apps and other devices.