Answer:
What covers its face with its hands, speaks no language, yet most known what it's saying?
A mighty weapon in the war against winged household pests.
They try to beat me, they try in vain. And when I win, I end the pain.
Hold the tail, while I fish for you.
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
I am a band that does not perform, sing, or act. What am I?