Hiding Autofilter arrows

[RobLink]

I have a sheet which I need to filter by several criteria, easily achieved by using:

Sub AutoFilter_in_Excel()
       Range("B11").AutoFilter Field:=8, Criteria1:="XYZ"
       Range("b11").AutoFilter Field:=10, Criteria1:=""
       
   End Sub

to show all cases assigned to XYZ which have not been completed (this would be in column K as a "Y"). I have found the following which would hide the autofilter arrows in the columns I'm referrring to:

Sub AutoFilter_in_Excel()
       Range("B11").AutoFilter Field:=8, Criteria1:="XYZ", VisibleDropDown:=False
       Range("b11").AutoFilter Field:=10, Criteria1:="", VisibleDropDown:=False
       
   End Sub

How do I use that same "VisibleDropDown:=False" instruction to get rid of the dropdown arrow in all columns?

Many thanks,

Rob