Shure's newest advances in analog wireless technology are included in the BLX Series to give churches amazing audio quality at a very affordable price! You can use up to 12 BLX systems in one location, and Shure's one-touch QuickScan makes setting them up a snap! Transmitter options include PG58, SM58 and Beta58A handheld mics and bodypack transmitter versions for popular lapel, headworn and instrument mics. One of the greatest benefits is that the transmitters run for up to 14 hours continuous use with AA batteries.