There once was a time where you needed to have a website for customers who were viewing your site on their desktops and another site for when they looked at it on their mobile device. The great news is that is no longer the case.
You can build one responsive website that instantly detects what device your customer is using and resizes the website to function seamlessly. This helps cut down on confusion by having the same look and feel regardless what device they use. Less confusion equals high converting customers and more sales.