Model B jump rope is a LED shining rope jump, it also called electronic jump rope, mixed light and speed jump rope.             It can change the color according to the player’s jump speed. If the speed is less than  100 cycles per minute, the color would be blue (or green). When the speed reaches100 to 150 cycles per minute, the color would change to green (or red, blue). If the speed is  over 150 cycles, both colors would shine at the same time. The beautiful scene would  surely catch your eyes firmly.

Compared with ordinary light jump rope on the market, our model B can change the color according to the the player's jump speed.If you want to watch the model B of the scene at day and at night, you can view our videos in You Tube:https://youtu.be/ugXFK51fO8g ;https://youtu.be/LRKN_YBj0cI; https://youtu.be/-AjFApEkNBw.