  Gravitational lensing in the weak field limit, quasinormal spectra, and
gray-body factors are investigated in the Reissner-Nordstr\"om spacetime
corrected by bounce parameters. Using the Gauss-Bonnet theorem, we analyze the
effects of bounce corrections to the weak gravitational deflection angle and
find that the divergence of the deflection angle can be suppressed by a bounce
correction in the Reissner-Nordstr\"om spacetime. We also notice that the
bounce correction plays the same role as the Morse potential in the deflection
angle. Moreover, we derive the perturbation equations with the spin-dependent
Regge-Wheeler potential and discuss the quasinormal spectral stability. We
observe that the quasinormal spectra decrease for both the massless scalar and
electromagnetic field perturbations. We further study the transmission
probability of particles scattered by the Regge-Wheeler potential and reveal
that the bounce correction introduced into the Reissner-Nordstr\"om spacetime
increases the gray-body factors of perturbation fields.
