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About this item [Cordless for training in limited space] Freedom to enjoy your workout with our RENPHO smart adjustable jump rope outdoors, or easily switch to cordless jumping with the included weighted cordless jump rope when space is limited. This provides a real jump-rope feel without using an attached rope. [Sync your workouts with the app] Connect the smart jump rope for adult fitness with the Renpho Fit app (iOS 7+ & Android 4.3+) via Bluetooth to record your skipping time, total number of skips, calories burned, etc., and save these stats on a daily, weekly, and monthly basis. Track your workouts and see visible improvements in your performance to reach your fitness goals. [3 challenging workout modes] Choose from Free Jump, Time Countdown and Number Countdown mode for a more fun, more effective workout that will test the limits of your endurance. The built-in chip and 3 sensitive and accurate Hall sensors ensure accurate workout data without the hassle of counting yourself. [Durable and adjustable jump rope] Made of steel wire and wrapped in a protective PVC cover, the rope is wear-resistant, tangle-free and damage-free on all ground types, so you can use it on hard tile floors or carpeted surfaces without worry. The smart jump rope with counter is 3 m/9.85 ft long and can easily be adjusted for the whole family without cutting. A great choice for fat burning, boxing, CrossFit, MMA & HIIT. [Non-slip & smart LCD handle] RENPHO digital jump rope with counter features silicone handles that are comfortable to touch and give you a firm grip during exercise. It is embedded with an LCD screen that gives you a clear view of jump-rope data. Press the button to set the workout goal and start your workout now.