The wheel is the ultimate personal transportation device. Small, simple to operate, and you can carry it like a briefcase into classrooms, offices and restaurants or onto the subway, bus, train or airplane. It weighs 13.9kg, as little as a student's backpack or a professional's briefcase. (with the foot-platforms folded up it's actually smaller than most briefcases. ) it takes about a half hour to learn the basics of riding, about a day or two to become proficient. (how long did it take to learn to ride a bike? ) just lean forward to go forward, lean back to stop. Lean left or right to turn. That's all there is to it. Once you get used to it, it's almost magical. Just think where you want to go, and you go there Range per power: 10 - 30 km Frame material: aluminum Foldable: yes Max speed: < 30km/h Style: standard type Wattage: 351 - 500w Rated passenger capacity: one seat Power supply: lithium battery Certification: ce Type: foldable Motor: brushless Model number: s-1 Wheel size: 360mm Voltage: 220v Max speed: 18km/h Cruising radius: 20~30km Climbing angle: about 15 degrees Maximum load: 120kg Battery: 174 kwh Size: 450mm*395mm Body weight: 13.9kg Speed protection: over 12km/h will open Battery protectiont: power is less than 10% open Tilt protection: more than 45 degrees, electricity stops working opportunity