Shure BLX Wireless System User Manual | 64 pages | Original mode | Also for: BLX2/PG58 Handheld Wireless Microphone Transmitter with PG58 Capsule (H10: 542 to 572 MHz), BLX2/SM58 Handheld Wireless Microphone Transmitter with SM58 Capsule (H9: 512 to 542 MHz)