Product
Features
J1 Smart Jump Ropes
Blue - Black - Pink
25° Ergonomic Design
Extremely Smooth & Fast
3 Hall Sensors For Ultra-Precise Counting
Four Jump Modes
Free Jump Mode: Turn on free jumping at anytime
Timing Jump Mode: Enjoy jumping in a target time
Counting Jump Mode: Jumping towards your goal
Target Jump Mode: Double set to achieve your jump goal
APP Data Synchronization
Burn calories efficiently while strengthening your heart and lungs.
Exclusive Courses
- Skipping backed by sport science
- Efficient fat burning
