Hard of Hearing

Hard of Hearing is one of Fallout GURPS disadvantages. See: Fallout GURPS.

Overview
"You are not deaf, but you have some hearing loss. You are at -4 to IQ on any Hearing roll (so your roll is IQ-4, rather than IQ). You are at -4 to your language skill roll for any situation where you must understand someone (if you are the one talking, this disadvantage doesn't affect you)"

- Steve Jackson Games GURPS sources

In Fallout
With the abandonment of GURPS, Hard of Hearing was removed from the game