Most people don't know that Siri, the voice assistant we have had since the iPhone 4S and was introduced in 2011 can also be used in hands free mode. Early versions of Siri worked with the user holding the Home button while speaking their voice commands.
However, this hands free mode, known as Hey Siri, was added in 2015. It works on the iPhone 6S and later as well as 3rd Generation iPad or later. It will also work on the iPhone 5S, but the 5S must be plugged into a power outlet. Let's learn exactly how to set this up. Read More >>> about Hey Siri: How to Enable Hands Free Siri