Two-way signaling for electric vehicles with a color display. Operating voltage 48-145V. When the wheel is bumped or rolled, it makes a loud sound, locks the wheel and sends a beep and vibration to the key fob. The range of signal transmission to the key fob is up to 100m (in open space). The key fob has a color display that shows the signal level with the alarm unit, the charge level of the key fob battery, and the vehicle battery voltage.