  In this paper, we first analyze the horizon structure of the acoustic charged
black hole in curved spacetime, and then study its acoustic shadow as well as
the near-horizon characteristics including the quasinormal modes (QNM)
frequencies and analogue Hawking radiation. We find that the radius of the
acoustic shadow for acoustic charged black hole is larger than that for
Reissner-Nordstr\"{o}m (RN) black hole, and both of them are suppressed by
increasing the black hole charge because their related outer horizons become
smaller. Then the QNM frequencies under scalar field perturbation and its
eikonal limit are computed via numeric method and acoustic shadow,
respectively. We find that the acoustic charged black hole is stable under the
perturbation and the QNM frequencies are much weaker than that for the
astrophysical black hole. Moreover, as the tuning parameter increases, the
perturbation oscillates more mildly and its damping time becomes longer, while
as the charge increases, the oscillation is enhanced slightly and the
perturbation decays a little faster which is different from that in RN black
hole. Finally, we numerically study the analogue Hawking radiation. We find
that the grey-body factor and energy emission rate are suppressed by the
angular number and the charge, but they do not monotonically depend on the
tuning parameter in the acoustic charged black hole. The behavior of the energy
emission rate affected by the parameters could be explained by the dependent
behavior of the Hawking temperature. We expect that our results could shed
light to the study of black holes in both theoretical and experimental
perspectives.
