Also incorporated is a car battery voltage display that alerts the user to when the car battery voltage falls below 11.9 volts. Like tis predecessor, the XRS 9845 is equipped to receive 14+ signals from law-enforcement speed traps, incoming emergency vehicles, road hazards, etc. Signature to this model is the abundance of optional accessories that can be attached to it, including a GPS locator/compass, an AURA Camera/Driving database, and more.