  Let $S_g$ be the closed oriented surface of genus g and let
$\text{Mod}^{\pm}(S_g)$ be the extended mapping class group of $S_g$. When the
genus is at least 5, we prove that $\text{Mod}^{\pm}(S_g)$ can be generated by
two torsion elements. One of these generators is an order 2 element, and the
other one is an order 4g+2 element.
