Act as a common wired jump rope, with the rope length up to 3m. * Also 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. * Very portable and can be used anywhere and Anytime * Powered by 1 * 3V CR2032 lithium button cell (included)