No removable ear flaps on that ski-mountaineering helmet.
But there are removable ear flaps are on most snow helmets – so no hindrance to communication there. (Not that the ear flaps are soundproof anyway).
Skate helmets mainly protect the backwards fall when your skates go from under you.
The helmets I pictured above are all snow helmets, they are just in a “skate-style” which is very popular at the moment especially among snowboarders and younger skiers.
Pretty much the entire product line of snow helmets for companies like Smith, Bern and Sandbox are that style or some variation.
Not everyone wants to wear a Ruroc!
(now that helmet would make communication difficult! 😆 )