Features: Using a high-performance 32-bit MCU, it supports protection functions for overvoltage, overcurrent, overheating, undervoltage, etc. Support fixed speed cruise, braking energy recovery, and adjustable speed limit. The controller can switch between sports and comfort modes. Through the mobile phone APP, it not only can upgrade the firmware , but can set the parameters or view the status. Double closed-loop system, quiet operation, smooth cut-in for secondary acceleration. It comes with a headlight and a taillight, which make it safer to ride at night. Specifications: Material: Aluminum and ABS and PCB Board Voltage: 36V Current: 16A Max. Speed: 30km/h Novice Speed Limit: 15km/h Climbing Angle: less than 15 degrees Max. Torque of Drive Motor: 35NM 2 Max. Power of Drive Motor: 350W 2 Instantaneous Maximum Power: 2000W Package Size: 150 150 50mm or 5.9 5.9 2.0in Package Weight: 380g or 13.4oz Packing List: 1 Controller Board 1 Digital Display Board 1 Panel Cover 1 Front Light 1 Tail Light 1 Communication Line 1 Accelerator 1 Manual