1. The sine wave controller supports 3 modes (Hall sensor mode, non-Hall mode, self-learning). Through self-learning, it can intelligently match each motor, with high working efficiency, low noise and low energy consumption, making your electric car or electric motorcycle more comfortable and easier to control, giving you the best pedaling experience 2. Universal input voltage range: 36V/48V/52V/60V/72V 3. Work with display by default 4. Display parameter settings 5. Full protection, and safety: over/under voltage, overcurrent, overload, overheating, anti-runaway, motor stall protection Multi-function: work in Hall mode or non-Hall mode, intelligent matching of different motors, throttle and PAS 5 gears, speed limit, cruise, push assistant, anti-theft, electric brake, etc. Optimal heat dissipation of aluminum housing Black anodized aluminum controller housing to prevent scratches Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Black Material: Aluminum Alloy Package Contents: 1 x Controller 1 x SW900 Display Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.