Helmet Ear protection

[smith ferguson]

I am hoping to mount ear protection on my helmet. The ones I got first did not fit. Are mounted earmuffs possible for this helmet? If so, what you recommend?

 

[Tobystihl]

Hmm doesn't have the usual slots for ear protection!

 

[Bobby Kirbos]

It looks like that helmet came with an ice cream sundae in it.