1. on / off function of supply, it will turn off automatically after waiting for 5 minutes; 2. The four-bit Smart display can be a true reflection of the state of charge of the battery to guarantee the Remote; 3. High, medium and low gears of switch and indicator imitation torque enhancers, with Memory Function, the ignition can automatically recover the state during shutdown; 4. Pulse function of 6 Km / h, and the increase light flashes during the impulse, it can be used by the pilot during driving a vehicle, and driving the vehicle will be easy; 5. Low voltage indication function, when the battery is in low voltage, the low voltage indicator flashes; The adoption of five lines of digital communication is with a function of versatile parameters self- adjustment, users can adjust the settings such as motor parameters, speed parameters , Parameter according to different models; The instrument has good interchangeability, and different instruments can exchange directly with each other and copy the data parameters; The optional supply voltage is 24V, 36V and 48V; size:6*8*11.5cm Material:Mixed Material colour:black Package Contents: 1 * Ebike-Controller Display Only the above package content, other products are not included. Note: Light 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.