Wireless microphone system (City Centre NR1)

Chord RU2 UHF system. NB this is a 2-channel system, but one channel doesn't work. There are 3 headset mics. but I can't test the transmitter for the faulty channel. The other 2, both for the working channel, worked ok last time I tried them. The belt pack transmitters each need 2 x AA batteries. Please note :it's not recommended to use 2 mics on the same channel, the radio signals tend to cancel each other out. Best to use just one and keep one as a spare.