Re: [Psionic Powers] Linked Abilities?
 

-10%
It's not "what can't the character do", it's a social awkwardness. That's what the -10% level of Always On covers. It's the fact that people will react to you differently when they notice that your footsteps don't make noise, that your can of soda fizzes silently when you open it, that they can't hear you breathing, etc. It's worth a minor reaction penalty in some situations, but more importantly, it reveals that you're simply not a normal human being. It's just as inconveniencing as most -10-point Supernatural Features.

Re: [Psionic Powers] Linked Abilities?
 

I understood.
Thank you for detailed explanation, Rev. Pee Kitty and nerdvana.

Re: [Psionic Powers] Linked Abilities?
 

I was having some related conceptual problems with Silence a couple of years ago, and came up with an auditory equivalent to Invisibility, which I called Soundless. You might get some use from it, though it still needs a little work.