I now have the Belltronics Pro RX75 Plus radar/laser detector and laser blocker (which is legal everywhere but Virginia,Washington DC and Canada - none of which are places I have a desire to drive her to!). It is concealed, and the display is built into the dash. The button serves 2 purposes - press it once to mute it, press it twice to deactivate the laser blocker for about 2 minutes. It was a sweet way to get rid of that stupid air bag light! Here is a pic of the mute/laser stop blocking button.