Feature: *1. Using high-performance 32-bit MCU. *2. Protection function for abnormal conditions such as overvoltage, overcurrent, overheating and undervoltage. *3. Constant speed cruise, adjustable speed limit. *4. 3 mode switching. *5. Double closed-loop system, quiet operation, smooth cut in secondary acceleration. Specification: Material: Aluminum + ABS Color: picture color (as shown in the picture) Size: Controller 84*45*27mm, control compartment cover 170*33*11.5 mm, display screen 100*45*11 mm Maximum speed: 35KM/H Climbing angle =15 degrees Maximum torque of drive motor: 35NM*2 Maximum power of drive motor: 350W*2 Maximum instantaneous power: 700W Weight: about 165g/250g/85g Motor control mode: sine wave vector control, current + speed closed loop control algorithm   Package Contents: Controller + display; * 1 Controller + cover * 1 Display * 1 Note: