  A qualitative study of the electron-phonon interaction (EPI) spectra in
$2H-NbS{{e}_{2}}$ is carried out by the method of point-contact spectroscopy in
the superconducting state. Anisotropy of the EPI spectra for contacts oriented
in the principal crystallographic directions (along the $c$ axis and parallel
to the basal surface) was observed. Approximate values of the positions of the
main features in the phonon density of states were established for both
directions. The additional low-frequency peaks observed in the spectra for
separate crystallographic orientations are associated with the collective
oscillations of the amplitude and phase of charge density waves.
