Nady ENCORE-1 GT Single Channel VHF Wireless Instrument Microphone System Channel E Available on selected frequencies in the VHF high-band (171-216 MHz) for interference-free, long-range performance Half rack receiver design with detachable front panel antennas RF and AF 5-LED displays for monitoring incoming signal strength and audio level; balanced XLR and unbalanced adjustable " jack outputNoiseless transmitter On/Off switching Off/Standby/On switch allows convenient audio muting with the transmitter on Input level adjust and locking 3.5mm jack