ESUMIC Digital Jump Counting Counter Cordless Jump Skipping Rope Act as a wireless jumping rope. Skipping just 10 minutes burns the same amount of calories as a 30 minute run which means you can potentially burn 3 times the amount of calories! Also can act as a digital Calorie counter to calculate and record the exercise time, Calorie count, number of jumps, and the user's weight on the LCD display screen. Suitable for both adult and kid to use. - Suitable for office, balcony, bedroom, outdoor use. Portable design, easy to use and convenient to carry. Package included: 1 Set Skipping Rope(battery not included)