Smart Jump Rope with Counter: Built-in LCD display with 4 display modes - weight/jump/timer/calories. The high precision counter skipping rope fitness monitors your exercise at all times and helps you to burn fat, lose weight and stay healthy in a more scientific way. Optional cordless jump/rope jump: practical dual-purpose skipping rope adults, ideal for indoor and outdoor use. The skipping rope short comes with 2 weighted balls to simulate the feeling of a real jump, allowing you to work out anywhere, anytime in the office, bedroom and other places where space is limited. Adjustable rope and durability: High quality rope plus ABS+PC material, sturdy and hard-wearing. And it comes with an extra battery for longer life.The length of the rope is 3m, you can easily adjust the exercise skipping ropes to the desired length with the included plug, it is suitable for all ages. Smooth ball bearings: The high performance 360 fast ball bearings ensure a fast and stable rotation, allowing you to achieve a smooth and easy jumping experience.