BLX Series Headset Wireless System with PGA31 Cardioid Condenser Headworn Mic and Windscreen, BLX1 Bodypack Transmitter, and BLX4 Receiver – H9 Band (512-542MHz)
BLX Series Wireless System with BLX2/BETA58A Handheld Microphone with Transmitter, BLX4R Rackmountable Receiver, and Accessories – H9 Band (512-542MHz)