Power on / off function of power supply, it will turn off automatically after f 5 minutes. The four-bit display can be a true reflection of the state of charge of the battery to the Remote. High, medium low gears of gear switch gear indicat imitation tque enhancers, with Gear Memy Function, the ignition can automatically recover the gear state during shutdown. Pulse function of 6 Km / h, the increase light flashes during the impulse, it can be used by during driving a vehicle, driving the vehicle will be easy. Low voltage indication function, when the battery is in low voltage, the low voltage indicat 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 mot parameters, speed parameters , Parameter accding to different models. The instrument has good interchangeability, different instruments can exchange directly with each other copy the data parameters; The power supply voltage is 36V 48V. Upgraded components: waterproof connects to cope with changing weather Colour: black Material: composite material Size: 8 x 4cm Package Contents: 1 Ebike-Controller Display Only the above package content, other products are not included. Note: Light reflection different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.