It is shown that the squeezed states |a,s>A = S'(z)D(a) |0>and |a, s>B=D(a) S(s)|0>are not fully equivalent. In fact, they are two eigenstates of annihilation operator of squeezon called by us, as b=SaS+, with the same squeezing features but different eigenvalues. Their statistical distributions and features of photons have striking difference and the status of energies contained by them are quite different.