Radar and Laser system control right at your fingertips. Handheld, wireless remote control offers easy access to all of your K40 radar and laser detector functions and features. Easily mount to your windshield visor with the supplied visor clip for convenient access to mute, volume, Quiet Ride, and other function buttons. No programming or paring needed. Immediate use for all compatible models. RCUi works with K40-100 Portable Radar and Laser Detector as well as the Custom Installed K40-360, K40-200, RL360di, and RL200di radar detectors.