Smart Jump-Rope with Fitness data display, Bluetooth Mobile App TrackingThe revolution of skipping rope. Change the way you workoutBurning Your Calories?Our Smart Rope can link with the mobile app via Bluetooth to track your progress, stay motivated, and work out smarter.App Control & Motion TrackingThe jump rope connects to the mobile app (iOS, Android) via Bluetooth4.0 to tell you about your cardio exercise. Let you measure the number of jumps, calories burned, time elapsed and your overall fitness progress.Intelligent CountWith bipolar lock switch, smart-chip, data record only after 360 degrees of rotation, avoid miscounting.Smooth Bearing DesignOne handle, two resistance bearings, and four bearings ensure more flexibility and soothness when rotating. Prevent rope winding, no noise, no vibration.Wire CoreDurable used, adapted 2.8 meters core wire, multi-wires wrap one line, 7 line.Long-Time Lasting BatteryWith charging battery, charge 30 minutes up to used 30 days.Say Bye to Boring SportCombine with MOVE IT App, motion tracking, weekly sport report, challenge with your friend. Let sport become funny!