1: Multiplayer interaction, release hands, remote control 2: 10 gear shift key remote control, scientific design, shifting gears, 360 without dead ends, stable, fast and smooth, say goodbye to winding 3: PU wrapped nylon rope, super tough, not easy to break 4: Built-in rechargeable lithium battery, one charge can be used continuously for 20 hours, standby for more than 30 days 5: Adults and children jump rope at the same time to increase parent-child activities and intimacy Function description: LED display, colorful breathing lights, 1-10 speed adjustment, Bluetooth-compatible 5.1 music function, 40mm*4 Euro/3w, remote control. Rated voltage: 3.7v Input voltage: 5V-1A Motor power: 5w Battery capacity: 1500mAh Rope skipping speed: 70-160 rpm (every 1 minute) Colour:blue Material:ABS Size:130 x 100mm Package Contents: 1 x Rope Skipping Machine 1 x Remote Control 1 x USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.