The fixed installation of the anti-radar consists of placing the detector under the front bumper, usually in an invisible place during a normal inspection of the car, plus installing the control unit and display in the interior of the vehicle. The small control unit with display can also be placed in a less visible place in the vehicle. Fixed radar detectors have a built-in GPS database and can also use voice commands. Acoustic signaling is a matter of course. The anti-radar can also pick up the laser meter, but it is only information that your vehicle has been measured. A laser jammer must be used to effectively protect against laser meters.