Shure Black PGX24/SM58 Switchable UHF System by Shure

Featuring Auto Frequency Selection and Auto Sync functionality; the Shure Switchable system scans the wireless landscape, instantly identifying a clear channel and then automatically syncs the transmitter with the receiver frequency via an infrared link. The system comprises a PGX4 receiver with 6.35 mm and XLR audio outputs, 1/4 front mount aerials, PGX2 transmitter with SM58 capsule (batteries included), PSU and carry case.