  We give theoretical predictions for the radio emission of a dark matter
candidate annihilating into 2-lepton and 4-lepton final states. We then compare
our results with the known radio measurements of the sky temperature as a
function of the frequency. In particular, we calculate the radio emission for
some dark matter candidates annihilating into intermediate bosons that
subsequently decay into a 4-lepton channel with a thermal annihilation
cross-section. We show that within the range of frequencies from $20\,{\rm
MHz}$ to $5\,{\rm GHz}$, this channel can produce a stronger signature than
direct annihilation into leptons.
