Digital wireless base set. Includes (1) EW-DX EM 2 receiver, (1) EW-DK SKM-S transmitter, (1) EW-DX bodypack transmitter and (2) BA 70 batteries, frequency range: V5-7 (941.700- 951.800 & 953.050 - 956.050 & 956.650-959.650). Part 74 license required to operate in the US and Canada.