The Shure BLX188 Dual Wireless Lavalier Microphone Kit contains two cardiod lavalier microphones, two bodypack transmitters, and a wireless receiver with discrete outputs (1/4" or XLR) for each channel.
300' transmitter to receiver range
Transmitters take included AA batteries
Receiver powered by AC adapter
You must check out an XLR cable seperately to connect the receiver to a recording device- it is not included in the kit.