1. ON/OFF function of power supply, it will automatically shut down after standby for 5 minutes;2. Four-bit intelligent power display can be a true reflection of the state of battery charge to the riding distance;3. High, middle and low gears of imitation boost of switch gears and gear indicator display, with gear memory function, power on can automatically the gear state during power off;4 .6Km/h boost function, and the boost light is blinking during boost, it can be used by the during driving a vehicle, and the vehicle driving will be easy;5. Under-voltage indication function, when the battery is in under-voltage, the under-voltage indicator flashes;6.The adoption of five- line of digital communication is with a self-setting function of versatile parameters, users can adjust the settings such as motor parameters, parameters, speed parameter according to different models; 7. The instrument is with good interchangeability, and different instruments can directly exchange with each other and copy the data parameters; 8. The optional power supply voltage is 24V, 36V and 48V; colour:BlackMaterial:plasticPackage Contents:1 * DisplayOnly 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.