One of the most important modern innovations is the ability to operate things hands free especially with laws against texting and driving being passed.  It started with cells phones like you see in the picture with wired microphones that attached to your visor then it moved to steering wheel mounted audio controls where you never had to look down at your radio and could always keep your eyes on the road, then you had integrated bluetooth that would sync with your wireless device making the driver able to operate important functions without taking their hands off the wheel, also you don't have to get pulled over an get a ticket!
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