How to pronounce this equation?

The circular thing is called a "sigma" -- a Greek letter, lowercase.

The h with a line through it is pronounced "h-bar".

Thank you.
But I knew that. I meant how to read the equation.
Sigma x multiplied by sigma p is greater than or equals to h bar divided by two?

Yes.

Let me add: sigma typically represents standard deviation of a probabilty distribution -- how much uncertainty there is about the value of the variable. You will notice that if you cut sigma-x in half and become twice as certain about the value of position, then sigma-p has to double, so you become half as certain about the value of momentum.

Cool.

Sometimes we say "over 2" instead of "divided by 2". Physicists are visual people.