What are the example of voluntary muscle?

Pretty much all skeletal (striated) muscle. Voluntary muscle in any muscle you can think "right, I'm going to move the muscle", and then you can do it. Involuntary muscle includes the heart muscle,...

biceps

a voluntary muscle is a muscle that move when you tell it to

skeletal muscle is a good example.

Skeletal muscles, like biceps (the muscles that flex your forearm/wrist toward your shoulder) are voluntary muscles. These muscles will not flex unless you think about flexing them, and your brain...