Features1The drive motor starts more smoothly and travels more comfortably. 2Strong climbing ability, low motor noise, eliminating tire noise. 3Without matching the motor phase, it can perform intelligent selflearning recognition. 4The uphill torque of the controller is increased, the power is enhanced, the speed can be faster, the stability of the drive motor is better, longer life time. 5Suitable for electric bicycle, electric scooter.SpecificationItem type:BrushlessSpeedMotorControllerMaterial: aluminium alloyColor: As picture shownSize: Approx. 12.5x7cm/4.9x2.8inWeight: Approx. 290gPower: 350WConnector function:1. Red black and orange (power cord + electric door lock cord)2. High storage battery brake cable3. Low storage battery brake cable4. Anti-theft power cord5.Turn handle line6. Motor Hall7. Third gear overspeed8. Anti-theft alarm9. Yellow, green and blue 3 round head-motor cable (3 lines)10. White line black head-learning line (2 lines)11. Green line green head-instrument line12. Orange Blackhead-Cruising Line13. Black line black head-cruising line(Total 16 contacts)Package List1 xController