I need to create accessible sub menus

Hello,
site: http://yourtechadvisors.com
As you can see, all the sub menus have little arrows to indicate sub menus. However, they are not screen reader supported. Each time a screen reader gets to one of those arrows, it does not read it, is there anyway to make this sub menu design accessible?

Helpful example: http://staff.washington.edu/tft/tests/menus/simplyaccessible/index.html
Thanks.