The R4 by Uniden has a much greater range than the R3. Its Auto Mute Memory feature automatically locks out false alert locations. The R4's K Band filter on the market signficantly reduces the amount of false alerts from blind spot monitors and K Band sensors in other vehicles. When you need the best information possible, and none of the noise, Uniden’s R4 Extreme puts you miles ahead.
Unmatched range and sensitivity with advanced false alert filtering for drivers who demand highest level of protection against speeding tickets
GPS technology with auto mute memory means unity can remember and automatically mute false alerts (such as retail store doors) along your routes so you never have to listen to the same false alert twice
Preloaded red light and speed camera locations with free database and firmware updates ensures your detector will never be out of date
Multicolor OLED display is easy to read and allows more useful information to be displayed at once, improving your overall situational awareness
Voice alerts allow for hands-free operation and provide clear communication; programmable to fit your style so you can keep your eyes on the road with no distractions
Highly effective K/KA Band filtering greatly reduces false alerts from blind spot monitoring and collision-avoidance systems in other vehicles
Spectre® Elite undetectable
MAX speed warning system
Includes 12-volt power cord with RJ11 connector, windshield suction-cup mounting brackets, hook and loop fastener, carrying case, data cable, and owner's manual