  In this contribution, we study the quasinormal modes of a Generic--class of a
regular black hole with a magnetic charge in nonlinear electrodynamics,
considering scalar and electromagnetic perturbations. The Generic--class
contains the Bardeen--class, Hayward--class, and New--class solutions. As the
Generic--class can represent a black hole with two horizons or one horizon.
First, we obtain the critical values of the magnetic charge and mass. Then,
using the third--order WKB approximation, we can determine the dependence of
the quasinormal modes with the parameters of the Generic--class. Finally, the
transmission and reflection coefficients of the scattered wave in the
third--order WKB approximation are calculated.
