Feature:1. Engine has strong climbing ability, low engine running noise, and eliminates tire noise.2. High‑quality materials, professional manufacturing, stable performance, high reliability.3. Engine starts more smoothly, the ride is more comfortable, and the driving process is stable.4. Easy to install and simple to detach, providing users a good using experience.5. Thickness of the shell increases, and the heat dissipation is better. Suitable for electric bicycles and electric scooters.How to Use:Each interface has a function description, and the function can be realized by connecting the socket according to your own needs.Specification:Item Type: Motor ControllerMaterial: Aluminum AlloyController Box Size: Approx. 10x7x3.2cm/3.9x2.8x1.3inCurrent: 10A-20AConnector Function:1. 3 Phase Lines2. 1 Power Cord3. 1 Hall Wire4. 1 Foot Pedal5. 1 Ordinary Instrument6. 1 Speed Up and Turn7. 1 Anti-theft Alarm8. 1 Low-level Brake9. 1 High-level Brake10. 1 Electric Door Lock11. 1 Cruise Control12. 2 Learning Lines13 1 Dial Gear Three-speed Package List:1 x Motor Controller