1. Speed control button: usually with low, middle and third gear speed control button, can easily adjust the wheel speed of electric vehicle, improve or reduce the speed to adapt to different needs. When using these devices, the corresponding speed control button needs to be pressed to ensure that the device operates at the correct speed, which is a convenient control mode that allows the driver to adjust the speed at any time and anywhere to adapt to changes in road and driving conditions, and avoid accidents. 2. Headlight button: It is the switch that controls the headlight of the vehicle. There's three gears, first with the headlights off. The second gear is a low light near, and the third gear is a distant light. When driving at night or encountering fog and haze bad weather, you need to turn on the headlights to illuminate the surrounding environment, so that your eyes can observe the real thing more and ensure your own safety. 3 Repair key: Repair key is used when the vehicle has a malfunction or needs to recover from a malfunction. Before using the repair button, we had better read the electric vehicle operation manual and understand some specific operation procedures to ensure that nothing is wrong.1. Simple and convenient operation: the handlebar switch can realize the headlights, acceleration, repair and other functions of electric vehicles, so it is very convenient to use. 2. High safety: black rubber material, with anti-skid design, to ensure that the driver can firmly hold the handlebars while driving, with high safety, to ensure the safe operation of the vehicle. 3. Beautiful atmosphere: the handle has some simple pattern texture to improve the appearance of beauty. 4. Easy maintenance: the handle switch is generally relatively easy to maintain and replace, so as to facilitate the user's own handling.Compatible with most electric vehicles/tricycles and other models