  We present a Master equation for description of fermions and bosons for
special relativities with two invariant scales (c and lambda_P). We introduce
canonically-conjugate variables (chi^0, chi) to (epsilon, pi) of Judes-Visser.
Together, they bring in a formal element of linearity and locality in an
otherwise non-linear and non-local theory. Special relativities with two
invariant scales provide all corrections, say, to the standard model of the
high energy physics, in terms of one fundamental constant, lambda_P. It is
emphasized that spacetime of special relativities with two invariant scales
carries an intrinsic quantum-gravitational character.
