It is an environmentally friendly and convenient personal transportation vehicle powered by electricity, usually equipped with rechargeable batteries and electric motors. Compact in size, easy to carry and store, very suitable for urban commuting and short distance travel. It usually has a simple operating interface, where users only need to control the speed through the throttle handle, while the braking system can be manual or electronically assisted. Diverse designs, ranging from simple single wheel styles to more stable dual or triple wheel designs, meet the needs of different users. It also has intelligent functions such as GPS positioning, mobile application control, and anti-theft alarms.