Sony Wireless Microphone complete System, Model WRR-860A UHF Synthesized Diversity Tuner Frequency rang 794.125-805.875MHZ  out put level 58dBu, and WRT-860A UHF Synthesized Transmitter Frequency rang 794.125-805.875MHZ . And Sony ECM77BC  Microphone included: everything you see in the pictures, wires, clips, extra battery holder, hard case. Everything is tested and used by a professional. In excellent shape.