Made of high quality material, and practical to use. New round color screen electric, digital lcd handle Function display: battery level, voltage, speed, Hall speed measurement Phase line Speed measurement Speed display Mileage LCD instrument display: speed - range power - voltage Voltage and mileage are in the same display position. Press the M key to switch the display content of mileage and voltage 22mm installation diameter Mileage display The longer the riding distance, the larger the displayed kilometer value good compatibility for scooter,balanced, ebike, electric bike easy to use and install,Good compatibility Type:6pin plug: 6-wire circular panel instrument circuit details Red power positive line Black power negative line Green line Speed measurement line (connected to the Hall line of the motor) Yellow line Light line Positive White line gear line Brown line gear line Colour:Black Material:Plastic Size: 16x10x5cm Package Contents: 1 * electric bicycles 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.