  By using simple and efficient method we discuss properties of a single
impurity immersed in three-dimensional Bose gas with the interaction between
particles tuned to unitary limit. Particularly, adopting the mean-field-like
approximation we present the first estimations for the low-momentum parameters
of the impurity spectrum, namely, the binding energy, the effective mass and
the quasiparticle residue both for repulsive and attractive Bose polarons in
the unitary gas.
