Item Type: Rope jump machine Material: ABS Battery: 3.7V lithium battery(built in) Remote Control: 1 x CR2025 battery(built in) Battery Capacity: 600mAh Remote Control Battery Capacity: 140mAh Package List 1 x Rope Jump Machine 1 x Charging Cable 1 x Remote Control (Random Delivery) 2 x Ropes 1Bluetooth: Smart jump rope machine is able to free your hands to jump, and listen to bluetooth music during playing, making sports more interesting. 2LED Display Design: Adjustable rope jump machine has a high definition LED display, which is able to clearly shows the number of laps and speed level. 3Automatic: Electronic jump rope machine is able to count when it rotates normally, but it will not count when it touches your foot to let you exercise comfortably. 4Adjustable Design: Electronic skipping machine has 110 gears. You can change skipping speed according to your needs to find the best way for you. 5Applicable People: Remote control skipping machine is very suitable for cute children, the elderly, beginners and athletes to keep fit and healthy.