    Sentence 1: The new WPAN standard uses the 2.4-  GHz unlicensed frequency band and specifies raw  data rates of 11M, 22M , 33M , 44M and SSMbit /  say.   * a  Sentence 2: The new WPAN standard uses the 2.4    GHz unlicensed Frequency band and specifies raw  data rates of 11,22, 33,44 and SSMbit /s .