This falls under the “just gotta have it” category of gadgets. ModooFree has designed several models of rear view mirrors with varying levels of hands free features for cell phone users. Their top of the line has Bluetooth, so you can leave the cell phone in your pocket and still take calls. It has caller ID that projects onto the rear view mirror. And in the interests of safety, so you don’t have to take your eyes off the road, it will speak the incoming phone number. And just when you think they have it all…they added a remote sensor that you attach to your bumper. When you back up it will show you in the mirror how far away you are from an object. How cool is that? Installation is simple, just clips over you existing mirror.