It show the true reflection of the battery charge, real time recording of the power consumption to riding mileage. The individual joints are clearly set up to help with cost-effective installation. When connected to a bicycle, this product display a lot of useful data on your bike, such as riding speed, time, power and temperature. The display on the meter makes it easier to see the data on the panel. (The version number is random, and the specified version number is not accepted, which does not affect the use) Color: Black Material: PCB Package Contents: 1 x Dashboard 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.