Escort Passport SR7 is a radar detector for vehicles that indicates you if your speed is being monitored by laser or radar guns. Its audio/visual alert lets you know about speed traps and dangerous intersections. This device features city/highway modes to reduce the number of false alarms in densely populated regions. In addition, the model is programmed to pick up all Ka band, X band, K band, laser signals coming from the front/rear area of the vehicle.