There are 4 default widget areas, which you can use to add your own content and functionality (Appearance > Widgets).
Sidebar Default
This is default slider bar. You can configure the position of this sidebar to left, right, bottom in Theme Options
Sidebar Product Page
This sidebar is used to display widgets in woocommerce page
Sidebar FAQ
This sidebar is used to display FAQ menu & Contact form FAQ page
Sidebar Footer Default
This sidebar is used to display footer widgets.