In the Template Manager navigate to the "Mobile Tab" and you will see all the options/instructions listed there such as:
Below you may setup mobile device support for your website. Your menu will be pulled from the same menu set in the Menu Options area. The mobile version contains the unique positions mobile_top_1, mobile_top_2, mobile_bottom_1, and mobile_bottom_2, you may publish any extension to these positions and they will only show on the mobile version.
positions: logo, search and breadcrumb are also present but are shared with the main PC version. Disabling the show frontpage article/component area in General Options will also disable the mobile version's front page area.