EASY INSTALLATION: It only takes a few minutes to install this monitor on your electric bike. This LCD display designed e-bike accessory is easy to operate for bike enthusiasts to keep track of their outdoor riding needs. Easy to operate, kilometers/miles can be set according to customer habits, speed limit value and error code indication. Smart battery indicator: Provides reliable battery indicator and real-time feedback of battery power, allowing you to accurately design your riding plan. It is suitable for refitting mid-mounted motor bicycles. Type: Meter Voltage: 24V/36V/48V Brightness level: 5 Available Sizes (mm): 022.2/25.4/31.8 Headlight switch: long press "+" Speed mode: average speed, maximum speed, speed (real time) PAS: 0-5 Colour:black Material:plastic 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.