CR99 Receiver is a rugged, all-metal, rack-mountable UHF wireless receiver for Samson Concert 99, AirLine 99, and AirLine AWX systems. A backlit multifunction LCD shows RF and audio levels, transmitter battery status, channel, and frequency; it supports group scan and IR sync. True RF diversity minimizes dropouts, and tone key prevents noise when the transmitter is off or out of range. Detachable 1/4-wave antennas feed balanced XLR and 1/4 outputs. Band D and Band K variants exist.