What can you hear but can't see
RESULT: Your voice.
Other possible answer is Air
It could be any type of sound
What instrument can you hear but never see?
I always follow my brother,
although very different we are.
You can see him, but not me.
You can hear me, but not him.
What am I?
I am all around you, but you cannot see me. I have no throat, but you can hear me. Valued during summer but despised in the winter. What am I?