text: Hands free devices can also be harmful . You are focused on the road but if something happens to your phone for example the call ended or you received a message then you are distracted and want to grab your phone . A lot of people would think that probably if I just take one second to look at my phone nothing will happen. But that's not true a car accident can happen based on the driver not looking on the road . You can't multitask when you are driving ! If you would like to be a safe driver you would have to make sure you process a ton of information about your environment and surroundings at all times.