A conference speakerphone is a device that allows you to make calls with cellular service or Wifi signal, being able to simultaneously speak and listen to multiple people. It is greatly convenient for those who require communicating on the job with multiple people, especially those who are constantly moving around different places as part of the job. Having a speakerphone allows you to conveniently make conference calls. With optimal sound quality, you are able to hear the other parties clearly over the phone even when people are talking over one another. The speakerphone has a long battery life, and as such you do not have to fret about needing a power outlet as you can simply charge it and bring it on the go.