... ! ----With the BEST WARRANTY in the INDUSTRY.Display Function: LED Meter Display function. Mileage, speed, timer, options of ... hour)Charging time4 hoursBalance modeInertial navigation moduleDisplay functionsLED Meter Display function. Mileage, speed, timer, options of speed,vibration ... as an Anti-theft alarm3): Display of accumulated mileage. Display of current speed.4): Display of Battery Level, Low ...