Colour:black Material:ABS Size:8 x 5 x 3.2 CM Package Contents: 1 x meter 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. 1. Data display: display driving speed, single mileage, accumulated mileage, riding time, steering gear boost, engine power and temperature, battery voltage and charging status, status and ambient temperature usage, etc. 2. Intelligent performance: faithfully reproduce the battery power, consumption in real time, and driving performance 4. Parameter setting: It has a series of user parameter setting functions, motor parameters, speed measurement parameters, speed limit parameters, power parameters, auxiliary control parameters, minimum adjustment voltage and maximum current parameters and other operating modes to adjust 3. The setting is stable: the multi-channel switching of -gear is automatically saved, and the -off stable state can be restored when the power is turned on; 5. Data viewing: users can view and delete historical driving data, display single or cumulative driving time, mileage, single maximum speed and average speed;