Exercise is good to improve our body health, and jumping rope is one way that can do fitting anytime and anywhere. Welland smart skipping rope with App connection help you burn calorie by four modes: free jumping, time countdown, jumps countdown, HIIT mode, and keep exercises with data chart, awards and ranking. Starting with the App “skipjoy” ( download on google play or apple store) with your families and friends, one account supports 24 users