USB Ports Used For Charging The Phone Real-time Battery Power Show Clearly And Accurately Color Full LCD Display & Waterproof AVG SPEED, MAX SPEED, SPEED(Real-time). Total Kilometer/Mile Distance , Time ,Speed and PAS Level Indicator Speed display:AVG/MAX/REAL TIME SPEED Battery Indicator:Reliable battery indicator 9-level Assist:3/5/9 optional Mileage indicator:ODO/TIRP/CLOCK/TIME USB charging port:5V/500mA Backlight:5 Levers Walking mode:6KM Brake Signal:On Display Headlight/backlight:On/Off Temperature:suitable for low temperature Max -20degrees Celsius Screen:High-contrast 3.2 inch IPS colorful matrix screen Button:Ergonomic external button design easy to operate Distance Display:Kilometer/ Mile, Can be set according to your habits. Mileage Indicator:Odometer/Trip distance/ Clock/ Riding time Power Indicator:Real time power indicator , digital or analog or Current Software Upgraded:Software can be upgraded through UART Other:Error code indicator Note: Do not plug in or unplug this display when the power to the unit is on. Avoid collisions. Protect the display's membrane to provide water resistant performance. Do not attempt to reset parameters if the display is not working. Installation: Install the display and button control on the handlebar and adjust its location. Plug it into the controller with power off. Colour:As Shown Material:plastic Package Contents: 2 x Colorful Screen Display P850C Speedometer