"The Shure Performance Gear PG185/PG58 dual wireless system is the perfect introduction to our wireless portfolio. This package comprises a PG1 Bodypack transmitter, a PG185 lavalier mic, a PG2 handheld transmitter and a PG88 diversity receiver. Fast and easy setup, even for a beginnerSimply press the channel button on the front of receiver and choose one of 10 available channels. A seven-segment LED indicates instantly if the selected channel is available. Once this is done, choose the same on the transmitter, and you are ready to go.How many musicians can use this system simultaneously?Up to four musicians can use Performance Gear Wireless systems at the same time. One wireless system consists of one transmitter and one receiver, so at a maximum you can run two dual receiver systems simultaneously.Why internal antennas?For ideal signal strength, antennas on a wireless system need to be setup in a certain way. The internal antennas on Performance Gear Wireless systems are already set in this ideal way, offering up to 75 m operating range and optimal signal strength.Additionally internal antennas cannot be broken during setup, use or transport."